118520125 has 16 divisors (see below), whose sum is σ = 148694832. Its totient is φ = 94315200.

The previous prime is 118520123. The next prime is 118520159. The reversal of 118520125 is 521025811.

It can be written as a sum of positive squares in 8 ways, for example, as 2785561 + 115734564 = 1669^2 + 10758^2 .

It is not a de Polignac number, because 118520125 - 2¹ = 118520123 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 118520125.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (118520123) 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, 22219 + ... + 27031.

It is an arithmetic number, because the mean of its divisors is an integer number (9293427).

Almost surely, 2^118520125 is an apocalyptic number.

It is an amenable number.

118520125 is a deficient number, since it is larger than the sum of its proper divisors (30174707).

118520125 is an equidigital number, since it uses as much as digits as its factorization.

118520125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5025 (or 5015 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 25.

The square root of 118520125 is about 10886.6948611597. The cubic root of 118520125 is about 491.2064191818.

Adding to 118520125 its reverse (521025811), we get a palindrome (639545936).

The spelling of 118520125 in words is "one hundred eighteen million, five hundred twenty thousand, one hundred twenty-five".