23433139 has 2 divisors, whose sum is σ = 23433140. Its totient is φ = 23433138.

The previous prime is 23433133. The next prime is 23433161. The reversal of 23433139 is 93133432.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 23433139 - 2¹⁷ = 23302067 is a prime.

It is a super-2 number, since 2×23433139² = 1098224006786642, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (23433133) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11716569 + 11716570.

It is an arithmetic number, because the mean of its divisors is an integer number (11716570).

Almost surely, 2^23433139 is an apocalyptic number.

23433139 is a deficient number, since it is larger than the sum of its proper divisors (1).

23433139 is an equidigital number, since it uses as much as digits as its factorization.

23433139 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5832, while the sum is 28.

The square root of 23433139 is about 4840.7787596625. The cubic root of 23433139 is about 286.1608098527.

The spelling of 23433139 in words is "twenty-three million, four hundred thirty-three thousand, one hundred thirty-nine".