23162881 has 8 divisors (see below), whose sum is σ = 27865280. Its totient is φ = 18808848.

The previous prime is 23162861. The next prime is 23162899. The reversal of 23162881 is 18826132.

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 23162881 - 2⁵ = 23162849 is a prime.

It is a super-2 number, since 2×23162881² = 1073038112440322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23162831) 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, 86946 + ... + 87211.

It is an arithmetic number, because the mean of its divisors is an integer number (3483160).

Almost surely, 2^23162881 is an apocalyptic number.

It is an amenable number.

23162881 is a deficient number, since it is larger than the sum of its proper divisors (4702399).

23162881 is a wasteful number, since it uses less digits than its factorization.

23162881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 174183.

The product of its digits is 4608, while the sum is 31.

The square root of 23162881 is about 4812.7830825833. The cubic root of 23162881 is about 285.0564410635.

The spelling of 23162881 in words is "twenty-three million, one hundred sixty-two thousand, eight hundred eighty-one".