124999875013 has 8 divisors (see below), whose sum is σ = 134758929368. Its totient is φ = 115261346304.

The previous prime is 124999875001. The next prime is 124999875031. The reversal of 124999875013 is 310578999421.

It can be written as a sum of positive squares in 4 ways, for example, as 8965627969 + 116034247044 = 94687^2 + 340638^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 124999875013 - 2²⁵ = 124966320581 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (124999876013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5118756 + ... + 5143117.

It is an arithmetic number, because the mean of its divisors is an integer number (16844866171).

Almost surely, 2^124999875013 is an apocalyptic number.

124999875013 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

124999875013 is a deficient number, since it is larger than the sum of its proper divisors (9759054355).

124999875013 is a wasteful number, since it uses less digits than its factorization.

124999875013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10262823.

The product of its (nonzero) digits is 4898880, while the sum is 58.

The spelling of 124999875013 in words is "one hundred twenty-four billion, nine hundred ninety-nine million, eight hundred seventy-five thousand, thirteen".