124907913 has 20 divisors (see below), whose sum is σ = 200945668. Its totient is φ = 76865760.

The previous prime is 124907873. The next prime is 124907933. The reversal of 124907913 is 319709421.

It can be written as a sum of positive squares in 2 ways, for example, as 45198729 + 79709184 = 6723^2 + 8928^2 .

It is not a de Polignac number, because 124907913 - 2¹⁰ = 124906889 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (124907933) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 58258 + ... + 60363.

Almost surely, 2^124907913 is an apocalyptic number.

124907913 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

124907913 is a deficient number, since it is larger than the sum of its proper divisors (76037755).

124907913 is a wasteful number, since it uses less digits than its factorization.

124907913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118646 (or 118637 counting only the distinct ones).

The product of its (nonzero) digits is 13608, while the sum is 36.

The square root of 124907913 is about 11176.2208729069. The cubic root of 124907913 is about 499.8771871698.

The spelling of 124907913 in words is "one hundred twenty-four million, nine hundred seven thousand, nine hundred thirteen".