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136190453 = 723977001
BaseRepresentation
bin10000001111000…
…01100111110101
3100111021012011212
420013201213311
5234331043303
621303011205
73242412500
oct1007414765
9314235155
10136190453
116a96a9a3
1239739b05
13222a5389
1414132137
15be52ad8
hex81e19f5

136190453 has 12 divisors (see below), whose sum is σ = 158847372. Its totient is φ = 116424000.

The previous prime is 136190447. The next prime is 136190459. The reversal of 136190453 is 354091631.

136190453 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (136190447) and next prime (136190459).

It can be written as a sum of positive squares in 2 ways, for example, as 74615044 + 61575409 = 8638^2 + 7847^2 .

It is not a de Polignac number, because 136190453 - 26 = 136190389 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136190459) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15953 + ... + 22953.

It is an arithmetic number, because the mean of its divisors is an integer number (13237281).

Almost surely, 2136190453 is an apocalyptic number.

It is an amenable number.

136190453 is a deficient number, since it is larger than the sum of its proper divisors (22656919).

136190453 is an equidigital number, since it uses as much as digits as its factorization.

136190453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7412 (or 7405 counting only the distinct ones).

The product of its (nonzero) digits is 9720, while the sum is 32.

The square root of 136190453 is about 11670.0665379423. The cubic root of 136190453 is about 514.4962592475.

The spelling of 136190453 in words is "one hundred thirty-six million, one hundred ninety thousand, four hundred fifty-three".

Divisors: 1 7 49 397 2779 7001 19453 49007 343049 2779397 19455779 136190453