23192881 has 2 divisors, whose sum is σ = 23192882. Its totient is φ = 23192880.

The previous prime is 23192857. The next prime is 23192941. The reversal of 23192881 is 18829132.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 23040000 + 152881 = 4800^2 + 391^2 .

It is a cyclic number.

It is not a de Polignac number, because 23192881 - 2⁵ = 23192849 is a prime.

It is a super-2 number, since 2×23192881² = 1075819458160322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (23192381) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11596440 + 11596441.

It is an arithmetic number, because the mean of its divisors is an integer number (11596441).

Almost surely, 2^23192881 is an apocalyptic number.

It is an amenable number.

23192881 is a deficient number, since it is larger than the sum of its proper divisors (1).

23192881 is an equidigital number, since it uses as much as digits as its factorization.

23192881 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6912, while the sum is 34.

The square root of 23192881 is about 4815.8987738531. The cubic root of 23192881 is about 285.1794540269.

The spelling of 23192881 in words is "twenty-three million, one hundred ninety-two thousand, eight hundred eighty-one".