125001251389 has 16 divisors (see below), whose sum is σ = 150389452800. Its totient is φ = 101496670704.

The previous prime is 125001251383. The next prime is 125001251399. The reversal of 125001251389 is 983152100521.

It is a cyclic number.

It is not a de Polignac number, because 125001251389 - 2²⁵ = 124967696957 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 (125001251383) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2083392 + ... + 2142550.

It is an arithmetic number, because the mean of its divisors is an integer number (9399340800).

Almost surely, 2^125001251389 is an apocalyptic number.

125001251389 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

125001251389 is a deficient number, since it is larger than the sum of its proper divisors (25388201411).

125001251389 is a wasteful number, since it uses less digits than its factorization.

125001251389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75072.

The product of its (nonzero) digits is 21600, while the sum is 37.

The spelling of 125001251389 in words is "one hundred twenty-five billion, one million, two hundred fifty-one thousand, three hundred eighty-nine".