23895139 has 2 divisors, whose sum is σ = 23895140. Its totient is φ = 23895138.

The previous prime is 23895127. The next prime is 23895167. The reversal of 23895139 is 93159832.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 23895139 - 2⁵ = 23895107 is a prime.

It is not a weakly prime, because it can be changed into another prime (23895199) 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, 11947569 + 11947570.

It is an arithmetic number, because the mean of its divisors is an integer number (11947570).

Almost surely, 2^23895139 is an apocalyptic number.

23895139 is a deficient number, since it is larger than the sum of its proper divisors (1).

23895139 is an equidigital number, since it uses as much as digits as its factorization.

23895139 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 58320, while the sum is 40.

The square root of 23895139 is about 4888.2654387830. The cubic root of 23895139 is about 288.0292014822.

The spelling of 23895139 in words is "twenty-three million, eight hundred ninety-five thousand, one hundred thirty-nine".