977135125 has 8 divisors (see below), whose sum is σ = 1219464792. Its totient is φ = 781708000.

The previous prime is 977135113. The next prime is 977135141. The reversal of 977135125 is 521531779.

It can be written as a sum of positive squares in 4 ways, for example, as 85396081 + 891739044 = 9241^2 + 29862^2 .

It is not a de Polignac number, because 977135125 - 2¹⁹ = 976610837 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3908416 + ... + 3908665.

It is an arithmetic number, because the mean of its divisors is an integer number (152433099).

Almost surely, 2^977135125 is an apocalyptic number.

It is an amenable number.

977135125 is a deficient number, since it is larger than the sum of its proper divisors (242329667).

977135125 is an equidigital number, since it uses as much as digits as its factorization.

977135125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7817096 (or 7817086 counting only the distinct ones).

The product of its digits is 66150, while the sum is 40.

The square root of 977135125 is about 31259.1606573177. The cubic root of 977135125 is about 992.3195365028.

The spelling of 977135125 in words is "nine hundred seventy-seven million, one hundred thirty-five thousand, one hundred twenty-five".