165745015 has 16 divisors (see below), whose sum is σ = 213156288. Its totient is φ = 123399936.

The previous prime is 165745007. The next prime is 165745043. The reversal of 165745015 is 510547561.

165745015 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 165745015 - 2³ = 165745007 is a prime.

It is a Duffinian number.

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, 15222 + ... + 23731.

It is an arithmetic number, because the mean of its divisors is an integer number (13322268).

Almost surely, 2^165745015 is an apocalyptic number.

165745015 is a deficient number, since it is larger than the sum of its proper divisors (47411273).

165745015 is a wasteful number, since it uses less digits than its factorization.

165745015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39018.

The product of its (nonzero) digits is 21000, while the sum is 34.

The square root of 165745015 is about 12874.1995867704. The cubic root of 165745015 is about 549.3049236026.

The spelling of 165745015 in words is "one hundred sixty-five million, seven hundred forty-five thousand, fifteen".