165300125 has 16 divisors (see below), whose sum is σ = 208436592. Its totient is φ = 130867200.

The previous prime is 165300097. The next prime is 165300131. The reversal of 165300125 is 521003561.

It can be written as a sum of positive squares in 8 ways, for example, as 41512249 + 123787876 = 6443^2 + 11126^2 .

It is a de Polignac number, because none of the positive numbers 2^k-165300125 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 165300125.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5309 + ... + 18941.

It is an arithmetic number, because the mean of its divisors is an integer number (13027287).

Almost surely, 2^165300125 is an apocalyptic number.

It is an amenable number.

165300125 is a deficient number, since it is larger than the sum of its proper divisors (43136467).

165300125 is an equidigital number, since it uses as much as digits as its factorization.

165300125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13745 (or 13735 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 23.

The square root of 165300125 is about 12856.9096209004. The cubic root of 165300125 is about 548.8130048403.

Adding to 165300125 its reverse (521003561), we get a palindrome (686303686).

The spelling of 165300125 in words is "one hundred sixty-five million, three hundred thousand, one hundred twenty-five".