23335139 has 2 divisors, whose sum is σ = 23335140. Its totient is φ = 23335138.

The previous prime is 23335129. The next prime is 23335153. The reversal of 23335139 is 93153332.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23335139 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (23335129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11667569 + 11667570.

It is an arithmetic number, because the mean of its divisors is an integer number (11667570).

Almost surely, 2^23335139 is an apocalyptic number.

23335139 is a deficient number, since it is larger than the sum of its proper divisors (1).

23335139 is an equidigital number, since it uses as much as digits as its factorization.

23335139 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7290, while the sum is 29.

The square root of 23335139 is about 4830.6458160374. The cubic root of 23335139 is about 285.7613336452.

The spelling of 23335139 in words is "twenty-three million, three hundred thirty-five thousand, one hundred thirty-nine".