118919025 has 27 divisors (see below), whose sum is σ = 213290571. Its totient is φ = 63336240.

The previous prime is 118919023. The next prime is 118919033. The reversal of 118919025 is 520919811.

The square root of 118919025 is 10905.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 42810849 + 76108176 = 6543^2 + 8724^2 .

It is not a de Polignac number, because 118919025 - 2¹ = 118919023 is a prime.

It is not an unprimeable number, because it can be changed into a prime (118919023) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 163212 + ... + 163938.

Almost surely, 2^118919025 is an apocalyptic number.

118919025 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

118919025 is the 10905-th square number.

118919025 is the 5453-rd centered octagonal number.

It is an amenable number.

118919025 is a deficient number, since it is larger than the sum of its proper divisors (94371546).

118919025 is an frugal number, since it uses more digits than its factorization.

118919025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1470 (or 735 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 36.

The cubic root of 118919025 is about 491.7568821655.

Multiplying 118919025 by its sum of digits (36), we get a square (4281084900 = 65430²).

The spelling of 118919025 in words is "one hundred eighteen million, nine hundred nineteen thousand, twenty-five".