118381725 has 72 divisors (see below), whose sum is σ = 264393792. Its totient is φ = 49190400.

The previous prime is 118381721. The next prime is 118381729. The reversal of 118381725 is 527183811.

It is an interprime number because it is at equal distance from previous prime (118381721) and next prime (118381729).

It is not a de Polignac number, because 118381725 - 2² = 118381721 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 118381725.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (118381721) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 13909 + ... + 20741.

It is an arithmetic number, because the mean of its divisors is an integer number (3672136).

Almost surely, 2^118381725 is an apocalyptic number.

118381725 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

118381725 is an abundant number, since it is smaller than the sum of its proper divisors (146012067).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

118381725 is a wasteful number, since it uses less digits than its factorization.

118381725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6867 (or 6859 counting only the distinct ones).

The product of its digits is 13440, while the sum is 36.

The square root of 118381725 is about 10880.3366216308. The cubic root of 118381725 is about 491.0151452031.

The spelling of 118381725 in words is "one hundred eighteen million, three hundred eighty-one thousand, seven hundred twenty-five".