265070961 has 33 divisors (see below), whose sum is σ = 403627161. Its totient is φ = 174076452.

The previous prime is 265070951. The next prime is 265070977. The reversal of 265070961 is 169070562.

The square root of 265070961 is 16281.

It is a perfect power (a square), and thus also a powerful number.

It is not a de Polignac number, because 265070961 - 2¹³ = 265062769 is a prime.

It is a super-2 number, since 2×265070961² = 140525228730927042, which contains 22 as substring.

It is a nialpdrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (265070921) by changing a digit.

It is a polite number, since it can be written in 32 ways as a sum of consecutive naturals, for example, 3956250 + ... + 3956316.

Almost surely, 2^265070961 is an apocalyptic number.

265070961 is the 16281-st square number.

265070961 is the 8141-st centered octagonal number.

It is an amenable number.

265070961 is a deficient number, since it is larger than the sum of its proper divisors (138556200).

265070961 is an frugal number, since it uses more digits than its factorization.

265070961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164 (or 70 counting only the distinct ones).

The product of its (nonzero) digits is 22680, while the sum is 36.

The cubic root of 265070961 is about 642.3731562849.

Multiplying 265070961 by its sum of digits (36), we get a square (9542554596 = 97686²).

The spelling of 265070961 in words is "two hundred sixty-five million, seventy thousand, nine hundred sixty-one".