23152279 has 8 divisors (see below), whose sum is σ = 24421680. Its totient is φ = 21888000.

The previous prime is 23152277. The next prime is 23152289. The reversal of 23152279 is 97225132.

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

It is not a de Polignac number, because 23152279 - 2¹ = 23152277 is a prime.

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 23152279.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23152271) 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, 11229 + ... + 13129.

It is an arithmetic number, because the mean of its divisors is an integer number (3052710).

Almost surely, 2^23152279 is an apocalyptic number.

23152279 is a deficient number, since it is larger than the sum of its proper divisors (1269401).

23152279 is a wasteful number, since it uses less digits than its factorization.

23152279 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2561.

The product of its digits is 7560, while the sum is 31.

The square root of 23152279 is about 4811.6815148137. The cubic root of 23152279 is about 285.0129428820.

The spelling of 23152279 in words is "twenty-three million, one hundred fifty-two thousand, two hundred seventy-nine".