23155970 has 8 divisors (see below), whose sum is σ = 41680764. Its totient is φ = 9262384.

The previous prime is 23155919. The next prime is 23155981. The reversal of 23155970 is 7955132.

It can be written as a sum of positive squares in 2 ways, for example, as 22080601 + 1075369 = 4699^2 + 1037^2 .

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

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, 1157789 + ... + 1157808.

Almost surely, 2^23155970 is an apocalyptic number.

23155970 is a deficient number, since it is larger than the sum of its proper divisors (18524794).

23155970 is a wasteful number, since it uses less digits than its factorization.

23155970 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2315604.

The product of its (nonzero) digits is 9450, while the sum is 32.

The square root of 23155970 is about 4812.0650452794. The cubic root of 23155970 is about 285.0280879263.

The spelling of 23155970 in words is "twenty-three million, one hundred fifty-five thousand, nine hundred seventy".