23135039 has 4 divisors (see below), whose sum is σ = 23146560. Its totient is φ = 23123520.

The previous prime is 23135023. The next prime is 23135051. The reversal of 23135039 is 93053132.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 23135039 - 2⁴ = 23135023 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 23134999 and 23135017.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23135009) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1874 + ... + 7055.

It is an arithmetic number, because the mean of its divisors is an integer number (5786640).

Almost surely, 2^23135039 is an apocalyptic number.

23135039 is a deficient number, since it is larger than the sum of its proper divisors (11521).

23135039 is an equidigital number, since it uses as much as digits as its factorization.

23135039 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11520.

The product of its (nonzero) digits is 2430, while the sum is 26.

The square root of 23135039 is about 4809.8897076752. The cubic root of 23135039 is about 284.9421817666.

The spelling of 23135039 in words is "twenty-three million, one hundred thirty-five thousand, thirty-nine".