118689225 has 24 divisors (see below), whose sum is σ = 199457472. Its totient is φ = 62260800.

The previous prime is 118689203. The next prime is 118689239. The reversal of 118689225 is 522986811.

It is a happy number.

It is not a de Polignac number, because 118689225 - 2⁶ = 118689161 is a prime.

It is a super-2 number, since 2×118689225² = 28174264262201250, which contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8397 + ... + 17546.

It is an arithmetic number, because the mean of its divisors is an integer number (8310728).

Almost surely, 2^118689225 is an apocalyptic number.

118689225 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

118689225 is a deficient number, since it is larger than the sum of its proper divisors (80768247).

118689225 is a wasteful number, since it uses less digits than its factorization.

118689225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26017 (or 26012 counting only the distinct ones).

The product of its digits is 69120, while the sum is 42.

The square root of 118689225 is about 10894.4584537277. The cubic root of 118689225 is about 491.4399197035.

The spelling of 118689225 in words is "one hundred eighteen million, six hundred eighty-nine thousand, two hundred twenty-five".