118640475 has 18 divisors (see below), whose sum is σ = 212498676. Its totient is φ = 63274800.

The previous prime is 118640461. The next prime is 118640477. The reversal of 118640475 is 574046811.

It is a happy number.

118640475 is a `hidden beast` number, since 1 + 1 + 8 + 640 + 4 + 7 + 5 = 666.

It is not a de Polignac number, because 118640475 - 2⁶ = 118640411 is a prime.

It is not an unprimeable number, because it can be changed into a prime (118640477) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 263421 + ... + 263870.

It is an arithmetic number, because the mean of its divisors is an integer number (11805482).

Almost surely, 2^118640475 is an apocalyptic number.

118640475 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

118640475 is a deficient number, since it is larger than the sum of its proper divisors (93858201).

118640475 is a wasteful number, since it uses less digits than its factorization.

118640475 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 527307 (or 527299 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 36.

The square root of 118640475 is about 10892.2208479263. The cubic root of 118640475 is about 491.3726263809.

The spelling of 118640475 in words is "one hundred eighteen million, six hundred forty thousand, four hundred seventy-five".