2132564261 has 2 divisors, whose sum is σ = 2132564262. Its totient is φ = 2132564260.

The previous prime is 2132564243. The next prime is 2132564353. The reversal of 2132564261 is 1624652312.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1424685025 + 707879236 = 37745^2 + 26606^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2132564261 is a prime.

It is a super-2 number, since 2×2132564261² = 9095660654588952242, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2132504261) 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 as a sum of consecutive naturals, namely, 1066282130 + 1066282131.

It is an arithmetic number, because the mean of its divisors is an integer number (1066282131).

Almost surely, 2^2132564261 is an apocalyptic number.

It is an amenable number.

2132564261 is a deficient number, since it is larger than the sum of its proper divisors (1).

2132564261 is an equidigital number, since it uses as much as digits as its factorization.

2132564261 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 17280, while the sum is 32.

The square root of 2132564261 is about 46179.6953324727. The cubic root of 2132564261 is about 1287.1644668867.

The spelling of 2132564261 in words is "two billion, one hundred thirty-two million, five hundred sixty-four thousand, two hundred sixty-one".