125003139 has 4 divisors (see below), whose sum is σ = 166670856. Its totient is φ = 83335424.

The previous prime is 125003119. The next prime is 125003161. The reversal of 125003139 is 931300521.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-125003139 is a prime.

It is not an unprimeable number, because it can be changed into a prime (125003119) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20833854 + ... + 20833859.

It is an arithmetic number, because the mean of its divisors is an integer number (41667714).

Almost surely, 2^125003139 is an apocalyptic number.

125003139 is a deficient number, since it is larger than the sum of its proper divisors (41667717).

125003139 is an equidigital number, since it uses as much as digits as its factorization.

125003139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41667716.

The product of its (nonzero) digits is 810, while the sum is 24.

The square root of 125003139 is about 11180.4802669653. The cubic root of 125003139 is about 500.0041852983.

The spelling of 125003139 in words is "one hundred twenty-five million, three thousand, one hundred thirty-nine".