269564131 has 2 divisors, whose sum is σ = 269564132. Its totient is φ = 269564130.

The previous prime is 269564123. The next prime is 269564147. The reversal of 269564131 is 131465962.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 269564131 - 2³ = 269564123 is a prime.

It is a super-2 number, since 2×269564131² = 145329641443570322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (269564111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 134782065 + 134782066.

It is an arithmetic number, because the mean of its divisors is an integer number (134782066).

Almost surely, 2^269564131 is an apocalyptic number.

269564131 is a deficient number, since it is larger than the sum of its proper divisors (1).

269564131 is an equidigital number, since it uses as much as digits as its factorization.

269564131 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 38880, while the sum is 37.

The square root of 269564131 is about 16418.4082967869. The cubic root of 269564131 is about 645.9824229131.

The spelling of 269564131 in words is "two hundred sixty-nine million, five hundred sixty-four thousand, one hundred thirty-one".