265139272 has 8 divisors (see below), whose sum is σ = 497136150. Its totient is φ = 132569632.

The previous prime is 265139261. The next prime is 265139279. The reversal of 265139272 is 272931562.

It can be written as a sum of positive squares in only one way, i.e., 264582756 + 556516 = 16266^2 + 746^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (265139279) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16571197 + ... + 16571212.

Almost surely, 2^265139272 is an apocalyptic number.

It is an amenable number.

265139272 is a deficient number, since it is larger than the sum of its proper divisors (231996878).

265139272 is a wasteful number, since it uses less digits than its factorization.

265139272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33142415 (or 33142411 counting only the distinct ones).

The product of its digits is 45360, while the sum is 37.

The square root of 265139272 is about 16283.0977396809. The cubic root of 265139272 is about 642.4283331874.

The spelling of 265139272 in words is "two hundred sixty-five million, one hundred thirty-nine thousand, two hundred seventy-two".