165038136 has 32 divisors (see below), whose sum is σ = 416607360. Its totient is φ = 54477792.

The previous prime is 165038119. The next prime is 165038143. The reversal of 165038136 is 631830561.

It is a junction number, because it is equal to n+sod(n) for n = 165038097 and 165038106.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30910 + ... + 35853.

It is an arithmetic number, because the mean of its divisors is an integer number (13018980).

Almost surely, 2^165038136 is an apocalyptic number.

It is an amenable number.

165038136 is an abundant number, since it is smaller than the sum of its proper divisors (251569224).

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

165038136 is a wasteful number, since it uses less digits than its factorization.

165038136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66875 (or 66871 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 33.

The square root of 165038136 is about 12846.7169346880. The cubic root of 165038136 is about 548.5229082675.

Adding to 165038136 its reverse (631830561), we get a palindrome (796868697).

The spelling of 165038136 in words is "one hundred sixty-five million, thirty-eight thousand, one hundred thirty-six".