23155315 has 8 divisors (see below), whose sum is σ = 27987120. Its totient is φ = 18390432.

The previous prime is 23155313. The next prime is 23155331. The reversal of 23155315 is 51355132.

23155315 is nontrivially palindromic in base 12.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 23155315 - 2¹ = 23155313 is a prime.

It is a super-2 number, since 2×23155315² = 1072337225498450, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 23155315.

It is not an unprimeable number, because it can be changed into a prime (23155313) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15964 + ... + 17353.

It is an arithmetic number, because the mean of its divisors is an integer number (3498390).

Almost surely, 2^23155315 is an apocalyptic number.

23155315 is a deficient number, since it is larger than the sum of its proper divisors (4831805).

23155315 is a wasteful number, since it uses less digits than its factorization.

23155315 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33461.

The product of its digits is 2250, while the sum is 25.

The square root of 23155315 is about 4811.9969866990. The cubic root of 23155315 is about 285.0254004241.

The spelling of 23155315 in words is "twenty-three million, one hundred fifty-five thousand, three hundred fifteen".