124939381625 has 8 divisors (see below), whose sum is σ = 155924348424. Its totient is φ = 99951505200.

The previous prime is 124939381603. The next prime is 124939381639. The reversal of 124939381625 is 526183939421.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 248472169 + 124690909456 = 15763^2 + 353116^2 .

It is not a de Polignac number, because 124939381625 - 2¹⁴ = 124939365241 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 499757402 + ... + 499757651.

It is an arithmetic number, because the mean of its divisors is an integer number (19490543553).

Almost surely, 2^124939381625 is an apocalyptic number.

It is an amenable number.

124939381625 is a deficient number, since it is larger than the sum of its proper divisors (30984966799).

124939381625 is an frugal number, since it uses more digits than its factorization.

124939381625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 999515068 (or 999515058 counting only the distinct ones).

The product of its digits is 2799360, while the sum is 53.

The spelling of 124939381625 in words is "one hundred twenty-four billion, nine hundred thirty-nine million, three hundred eighty-one thousand, six hundred twenty-five".