264140265 has 16 divisors (see below), whose sum is σ = 437198400. Its totient is φ = 136016832.

The previous prime is 264140249. The next prime is 264140297. The reversal of 264140265 is 562041462.

It is not a de Polignac number, because 264140265 - 2⁴ = 264140249 is a prime.

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, 303175 + ... + 304044.

It is an arithmetic number, because the mean of its divisors is an integer number (27324900).

Almost surely, 2^264140265 is an apocalyptic number.

It is an amenable number.

264140265 is a deficient number, since it is larger than the sum of its proper divisors (173058135).

264140265 is a wasteful number, since it uses less digits than its factorization.

264140265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 607256.

The product of its (nonzero) digits is 11520, while the sum is 30.

The square root of 264140265 is about 16252.3925930923. The cubic root of 264140265 is about 641.6204582080.

The spelling of 264140265 in words is "two hundred sixty-four million, one hundred forty thousand, two hundred sixty-five".