23045539 has 12 divisors (see below), whose sum is σ = 25458328. Its totient is φ = 20845440.

The previous prime is 23045497. The next prime is 23045573. The reversal of 23045539 is 93554032.

It is not a de Polignac number, because 23045539 - 2¹¹ = 23043491 is a prime.

It is a hoax number, since the sum of its digits (31) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 23045539.

It is not an unprimeable number, because it can be changed into a prime (23045579) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 33907 + ... + 34579.

Almost surely, 2^23045539 is an apocalyptic number.

23045539 is a deficient number, since it is larger than the sum of its proper divisors (2412789).

23045539 is a wasteful number, since it uses less digits than its factorization.

23045539 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 978 (or 967 counting only the distinct ones).

The product of its (nonzero) digits is 16200, while the sum is 31.

The square root of 23045539 is about 4800.5769444932. The cubic root of 23045539 is about 284.5742653470.

The spelling of 23045539 in words is "twenty-three million, forty-five thousand, five hundred thirty-nine".