97811125 has 8 divisors (see below), whose sum is σ = 122068440. Its totient is φ = 78248800.

The previous prime is 97811099. The next prime is 97811137. The reversal of 97811125 is 52111879.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 2377764 + 95433361 = 1542^2 + 9769^2 .

It is not a de Polignac number, because 97811125 - 2²¹ = 95713973 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 391120 + ... + 391369.

It is an arithmetic number, because the mean of its divisors is an integer number (15258555).

Almost surely, 2^97811125 is an apocalyptic number.

It is an amenable number.

97811125 is a deficient number, since it is larger than the sum of its proper divisors (24257315).

97811125 is an equidigital number, since it uses as much as digits as its factorization.

97811125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 782504 (or 782494 counting only the distinct ones).

The product of its digits is 5040, while the sum is 34.

The square root of 97811125 is about 9889.9507076628. The cubic root of 97811125 is about 460.7472495522.

Subtracting from 97811125 its sum of digits (34), we obtain a triangular number (97811091 = T₁₃₉₈₆).

The spelling of 97811125 in words is "ninety-seven million, eight hundred eleven thousand, one hundred twenty-five".