23065631 has 2 divisors, whose sum is σ = 23065632. Its totient is φ = 23065630.

The previous prime is 23065589. The next prime is 23065649. The reversal of 23065631 is 13656032.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23065631 is a prime.

It is a super-2 number, since 2×23065631² = 1064046666856322, which contains 22 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 23065631.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23035631) 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, 11532815 + 11532816.

It is an arithmetic number, because the mean of its divisors is an integer number (11532816).

Almost surely, 2^23065631 is an apocalyptic number.

23065631 is a deficient number, since it is larger than the sum of its proper divisors (1).

23065631 is an equidigital number, since it uses as much as digits as its factorization.

23065631 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3240, while the sum is 26.

The square root of 23065631 is about 4802.6691537103. The cubic root of 23065631 is about 284.6569423069.

The spelling of 23065631 in words is "twenty-three million, sixty-five thousand, six hundred thirty-one".