127402815125 has 16 divisors (see below), whose sum is σ = 159500336112. Its totient is φ = 101600699200.

The previous prime is 127402815101. The next prime is 127402815151. The reversal of 127402815125 is 521518204721.

It can be written as a sum of positive squares in 8 ways, for example, as 51261035281 + 76141779844 = 226409^2 + 275938^2 .

It is not a de Polignac number, because 127402815125 - 2¹⁶ = 127402749589 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1567982 + ... + 1647231.

It is an arithmetic number, because the mean of its divisors is an integer number (9968771007).

Almost surely, 2^127402815125 is an apocalyptic number.

It is an amenable number.

127402815125 is a deficient number, since it is larger than the sum of its proper divisors (32097520987).

127402815125 is an equidigital number, since it uses as much as digits as its factorization.

127402815125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3215545 (or 3215535 counting only the distinct ones).

The product of its (nonzero) digits is 44800, while the sum is 38.

The spelling of 127402815125 in words is "one hundred twenty-seven billion, four hundred two million, eight hundred fifteen thousand, one hundred twenty-five".