23031959 has 2 divisors, whose sum is σ = 23031960. Its totient is φ = 23031958.

The previous prime is 23031949. The next prime is 23032001. The reversal of 23031959 is 95913032.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 23031959 - 2¹⁶ = 22966423 is a prime.

It is a super-2 number, since 2×23031959² = 1060942270755362, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23031929) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11515979 + 11515980.

It is an arithmetic number, because the mean of its divisors is an integer number (11515980).

Almost surely, 2^23031959 is an apocalyptic number.

23031959 is a deficient number, since it is larger than the sum of its proper divisors (1).

23031959 is an equidigital number, since it uses as much as digits as its factorization.

23031959 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7290, while the sum is 32.

The square root of 23031959 is about 4799.1623227393. The cubic root of 23031959 is about 284.5183575224.

The spelling of 23031959 in words is "twenty-three million, thirty-one thousand, nine hundred fifty-nine".