165235365 has 12 divisors (see below), whose sum is σ = 286408044. Its totient is φ = 88125504.

The previous prime is 165235351. The next prime is 165235403. The reversal of 165235365 is 563532561.

165235365 is a `hidden beast` number, since 1 + 65 + 235 + 365 = 666.

165235365 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 130165281 + 35070084 = 11409^2 + 5922^2 .

It is not a de Polignac number, because 165235365 - 2⁴ = 165235349 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1835904 + ... + 1835993.

It is an arithmetic number, because the mean of its divisors is an integer number (23867337).

Almost surely, 2^165235365 is an apocalyptic number.

165235365 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

165235365 is a deficient number, since it is larger than the sum of its proper divisors (121172679).

165235365 is a wasteful number, since it uses less digits than its factorization.

165235365 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3671908 (or 3671905 counting only the distinct ones).

The product of its digits is 81000, while the sum is 36.

The square root of 165235365 is about 12854.3908840520. The cubic root of 165235365 is about 548.7413255790.

It can be divided in two parts, 165235 and 365, that added together give a triangular number (165600 = T₅₇₅).

The spelling of 165235365 in words is "one hundred sixty-five million, two hundred thirty-five thousand, three hundred sixty-five".