23291351 has 2 divisors, whose sum is σ = 23291352. Its totient is φ = 23291350.

The previous prime is 23291347. The next prime is 23291363. The reversal of 23291351 is 15319232.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 23291351 - 2² = 23291347 is a prime.

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 23291351.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23291381) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11645675 + 11645676.

It is an arithmetic number, because the mean of its divisors is an integer number (11645676).

Almost surely, 2^23291351 is an apocalyptic number.

23291351 is a deficient number, since it is larger than the sum of its proper divisors (1).

23291351 is an equidigital number, since it uses as much as digits as its factorization.

23291351 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1620, while the sum is 26.

The square root of 23291351 is about 4826.1113745955. Note that the first 3 decimals coincide. The cubic root of 23291351 is about 285.5824795972.

The spelling of 23291351 in words is "twenty-three million, two hundred ninety-one thousand, three hundred fifty-one".