23391245 has 4 divisors (see below), whose sum is σ = 28069500. Its totient is φ = 18712992.

The previous prime is 23391211. The next prime is 23391257. The reversal of 23391245 is 54219332.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 17255716 + 6135529 = 4154^2 + 2477^2 .

It is a cyclic number.

It is not a de Polignac number, because 23391245 - 2¹⁰ = 23390221 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2339120 + ... + 2339129.

It is an arithmetic number, because the mean of its divisors is an integer number (7017375).

Almost surely, 2^23391245 is an apocalyptic number.

It is an amenable number.

23391245 is a deficient number, since it is larger than the sum of its proper divisors (4678255).

23391245 is an equidigital number, since it uses as much as digits as its factorization.

23391245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4678254.

The product of its digits is 6480, while the sum is 29.

The square root of 23391245 is about 4836.4496275677. The cubic root of 23391245 is about 285.9901744061.

The spelling of 23391245 in words is "twenty-three million, three hundred ninety-one thousand, two hundred forty-five".