165136236 has 12 divisors (see below), whose sum is σ = 385317912. Its totient is φ = 55045408.

The previous prime is 165136229. The next prime is 165136243. The reversal of 165136236 is 632631561.

It is an interprime number because it is at equal distance from previous prime (165136229) and next prime (165136243).

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 165136197 and 165136206.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 6880665 + ... + 6880688.

It is an arithmetic number, because the mean of its divisors is an integer number (32109826).

Almost surely, 2^165136236 is an apocalyptic number.

It is an amenable number.

165136236 is an abundant number, since it is smaller than the sum of its proper divisors (220181676).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

165136236 is a wasteful number, since it uses less digits than its factorization.

165136236 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13761360 (or 13761358 counting only the distinct ones).

The product of its digits is 19440, while the sum is 33.

The square root of 165136236 is about 12850.5344635933. The cubic root of 165136236 is about 548.6315688886.

Adding to 165136236 its reverse (632631561), we get a palindrome (797767797).

The spelling of 165136236 in words is "one hundred sixty-five million, one hundred thirty-six thousand, two hundred thirty-six".