23149319 has 2 divisors, whose sum is σ = 23149320. Its totient is φ = 23149318.

The previous prime is 23149307. The next prime is 23149363. The reversal of 23149319 is 91394132.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 23149319 - 2¹⁶ = 23083783 is a prime.

It is a super-2 number, since 2×23149319² = 1071781940327522, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23149369) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11574659 + 11574660.

It is an arithmetic number, because the mean of its divisors is an integer number (11574660).

Almost surely, 2^23149319 is an apocalyptic number.

23149319 is a deficient number, since it is larger than the sum of its proper divisors (1).

23149319 is an equidigital number, since it uses as much as digits as its factorization.

23149319 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5832, while the sum is 32.

The square root of 23149319 is about 4811.3739202020. The cubic root of 23149319 is about 285.0007961402. Note that the first 3 decimals are identical.

The spelling of 23149319 in words is "twenty-three million, one hundred forty-nine thousand, three hundred nineteen".