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136134621 = 337720289
BaseRepresentation
bin10000001110100…
…11111111011101
3100111011100121000
420013103333131
5234322301441
621301500513
73242060640
oct1007237735
9314140530
10136134621
116a931a57
1239711739
1322285b3c
1414119a57
15be412b6
hex81d3fdd

136134621 has 16 divisors (see below), whose sum is σ = 230492800. Its totient is φ = 77791104.

The previous prime is 136134599. The next prime is 136134629. The reversal of 136134621 is 126431631.

136134621 is a `hidden beast` number, since 1 + 3 + 6 + 1 + 34 + 621 = 666.

It is not a de Polignac number, because 136134621 - 211 = 136132573 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136134629) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 359956 + ... + 360333.

It is an arithmetic number, because the mean of its divisors is an integer number (14405800).

Almost surely, 2136134621 is an apocalyptic number.

It is an amenable number.

136134621 is a deficient number, since it is larger than the sum of its proper divisors (94358179).

136134621 is an equidigital number, since it uses as much as digits as its factorization.

136134621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 720305 (or 720299 counting only the distinct ones).

The product of its digits is 2592, while the sum is 27.

The square root of 136134621 is about 11667.6741898289. The cubic root of 136134621 is about 514.4259428125.

The spelling of 136134621 in words is "one hundred thirty-six million, one hundred thirty-four thousand, six hundred twenty-one".

Divisors: 1 3 7 9 21 27 63 189 720289 2160867 5042023 6482601 15126069 19447803 45378207 136134621