23131469 has 2 divisors, whose sum is σ = 23131470. Its totient is φ = 23131468.

The previous prime is 23131457. The next prime is 23131477. The reversal of 23131469 is 96413132.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 19909444 + 3222025 = 4462^2 + 1795^2 .

It is a cyclic number.

It is not a de Polignac number, because 23131469 - 2⁴ = 23131453 is a prime.

It is a super-2 number, since 2×23131469² = 1070129716195922, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23131429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11565734 + 11565735.

It is an arithmetic number, because the mean of its divisors is an integer number (11565735).

Almost surely, 2^23131469 is an apocalyptic number.

It is an amenable number.

23131469 is a deficient number, since it is larger than the sum of its proper divisors (1).

23131469 is an equidigital number, since it uses as much as digits as its factorization.

23131469 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3888, while the sum is 29.

The square root of 23131469 is about 4809.5185829769. The cubic root of 23131469 is about 284.9275244047.

The spelling of 23131469 in words is "twenty-three million, one hundred thirty-one thousand, four hundred sixty-nine".