124861931 has 2 divisors, whose sum is σ = 124861932. Its totient is φ = 124861930.

The previous prime is 124861921. The next prime is 124861969. The reversal of 124861931 is 139168421.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 124861931 - 2¹⁰ = 124860907 is a prime.

It is a super-2 number, since 2×124861931² = 31181003626097522, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 124861891 and 124861900.

It is not a weakly prime, because it can be changed into another prime (124861921) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62430965 + 62430966.

It is an arithmetic number, because the mean of its divisors is an integer number (62430966).

Almost surely, 2^124861931 is an apocalyptic number.

124861931 is a deficient number, since it is larger than the sum of its proper divisors (1).

124861931 is an equidigital number, since it uses as much as digits as its factorization.

124861931 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10368, while the sum is 35.

The square root of 124861931 is about 11174.1635481140. The cubic root of 124861931 is about 499.8158401786.

The spelling of 124861931 in words is "one hundred twenty-four million, eight hundred sixty-one thousand, nine hundred thirty-one".