118820525 has 6 divisors (see below), whose sum is σ = 147337482. Its totient is φ = 95056400.

The previous prime is 118820521. The next prime is 118820539. The reversal of 118820525 is 525028811.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 25060036 + 93760489 = 5006^2 + 9683^2 .

It is not a de Polignac number, because 118820525 - 2² = 118820521 is a prime.

It is a super-2 number, since 2×118820525² = 28236634322551250, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 118820491 and 118820500.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (118820521) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2376386 + ... + 2376435.

It is an arithmetic number, because the mean of its divisors is an integer number (24556247).

Almost surely, 2^118820525 is an apocalyptic number.

It is an amenable number.

118820525 is a deficient number, since it is larger than the sum of its proper divisors (28516957).

118820525 is an equidigital number, since it uses as much as digits as its factorization.

118820525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4752831 (or 4752826 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 32.

The square root of 118820525 is about 10900.4827874732. The cubic root of 118820525 is about 491.6210714525.

The spelling of 118820525 in words is "one hundred eighteen million, eight hundred twenty thousand, five hundred twenty-five".