2132564265 has 24 divisors (see below), whose sum is σ = 3980787720. Its totient is φ = 1049877504.

The previous prime is 2132564261. The next prime is 2132564353. The reversal of 2132564265 is 5624652312.

2132564265 is a `hidden beast` number, since 2 + 1 + 3 + 2 + 5 + 642 + 6 + 5 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 406909584 + 1725654681 = 20172^2 + 41541^2 .

It is not a de Polignac number, because 2132564265 - 2² = 2132564261 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2132564261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1822120 + ... + 1823289.

It is an arithmetic number, because the mean of its divisors is an integer number (165866155).

Almost surely, 2^2132564265 is an apocalyptic number.

It is an amenable number.

2132564265 is a deficient number, since it is larger than the sum of its proper divisors (1848223455).

2132564265 is a wasteful number, since it uses less digits than its factorization.

2132564265 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3645433 (or 3645430 counting only the distinct ones).

The product of its digits is 86400, while the sum is 36.

The square root of 2132564265 is about 46179.6953757818. The cubic root of 2132564265 is about 1287.1644676915.

The spelling of 2132564265 in words is "two billion, one hundred thirty-two million, five hundred sixty-four thousand, two hundred sixty-five".