165139037 has 16 divisors (see below), whose sum is σ = 201127680. Its totient is φ = 132357888.

The previous prime is 165139019. The next prime is 165139061. The reversal of 165139037 is 730931561.

It is a cyclic number.

It is not a de Polignac number, because 165139037 - 2¹² = 165134941 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 165138988 and 165139006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (165139097) 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, 14264 + ... + 23102.

It is an arithmetic number, because the mean of its divisors is an integer number (12570480).

Almost surely, 2^165139037 is an apocalyptic number.

165139037 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

165139037 is a deficient number, since it is larger than the sum of its proper divisors (35988643).

165139037 is a wasteful number, since it uses less digits than its factorization.

165139037 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9020.

The product of its (nonzero) digits is 17010, while the sum is 35.

The square root of 165139037 is about 12850.6434469251. The cubic root of 165139037 is about 548.6346707887.

The spelling of 165139037 in words is "one hundred sixty-five million, one hundred thirty-nine thousand, thirty-seven".