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136507797 = 3215167533
BaseRepresentation
bin10000010001011…
…11000110010101
3100111212022111100
420020233012111
5234421222142
621313500313
73245203626
oct1010570625
9314768440
10136507797
1170067368
1239871699
132238695a
14141b5a4d
15beb6b4c
hex822f195

136507797 has 6 divisors (see below), whose sum is σ = 197177942. Its totient is φ = 91005192.

The previous prime is 136507771. The next prime is 136507823. The reversal of 136507797 is 797705631.

136507797 is a `hidden beast` number, since 136 + 507 + 7 + 9 + 7 = 666.

It is an interprime number because it is at equal distance from previous prime (136507771) and next prime (136507823).

It can be written as a sum of positive squares in only one way, i.e., 83887281 + 52620516 = 9159^2 + 7254^2 .

It is not a de Polignac number, because 136507797 - 211 = 136505749 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136507717) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 7583758 + ... + 7583775.

Almost surely, 2136507797 is an apocalyptic number.

It is an amenable number.

136507797 is a deficient number, since it is larger than the sum of its proper divisors (60670145).

136507797 is a wasteful number, since it uses less digits than its factorization.

136507797 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15167539 (or 15167536 counting only the distinct ones).

The product of its (nonzero) digits is 277830, while the sum is 45.

The square root of 136507797 is about 11683.6551215790. The cubic root of 136507797 is about 514.8955668469.

The spelling of 136507797 in words is "one hundred thirty-six million, five hundred seven thousand, seven hundred ninety-seven".

Divisors: 1 3 9 15167533 45502599 136507797