23391315 has 32 divisors (see below), whose sum is σ = 41879040. Its totient is φ = 12387168.

The previous prime is 23391287. The next prime is 23391341. The reversal of 23391315 is 51319332.

It is a happy number.

It is not a de Polignac number, because 23391315 - 2¹⁰ = 23390291 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

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 in 31 ways as a sum of consecutive naturals, for example, 21474 + ... + 22536.

It is an arithmetic number, because the mean of its divisors is an integer number (1308720).

Almost surely, 2^23391315 is an apocalyptic number.

23391315 is a deficient number, since it is larger than the sum of its proper divisors (18487725).

23391315 is a wasteful number, since it uses less digits than its factorization.

23391315 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1240 (or 1234 counting only the distinct ones).

The product of its digits is 2430, while the sum is 27.

The square root of 23391315 is about 4836.4568642757. The cubic root of 23391315 is about 285.9904596880.

The spelling of 23391315 in words is "twenty-three million, three hundred ninety-one thousand, three hundred fifteen".