240561165 has 16 divisors (see below), whose sum is σ = 414505728. Its totient is φ = 118430016.

The previous prime is 240561157. The next prime is 240561173. The reversal of 240561165 is 561165042.

240561165 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (240561157) and next prime (240561173).

It is not a de Polignac number, because 240561165 - 2³ = 240561157 is a prime.

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, 616629 + ... + 617018.

It is an arithmetic number, because the mean of its divisors is an integer number (25906608).

Almost surely, 2^240561165 is an apocalyptic number.

It is an amenable number.

240561165 is a deficient number, since it is larger than the sum of its proper divisors (173944563).

240561165 is a wasteful number, since it uses less digits than its factorization.

240561165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1233668.

The product of its (nonzero) digits is 7200, while the sum is 30.

The square root of 240561165 is about 15510.0343326506. The cubic root of 240561165 is about 621.9304769915.

The spelling of 240561165 in words is "two hundred forty million, five hundred sixty-one thousand, one hundred sixty-five".