118521670 has 16 divisors (see below), whose sum is σ = 213514560. Its totient is φ = 47369664.

The previous prime is 118521661. The next prime is 118521679. The reversal of 118521670 is 76125811.

It is an interprime number because it is at equal distance from previous prime (118521661) and next prime (118521679).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (118521679) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10066 + ... + 18394.

It is an arithmetic number, because the mean of its divisors is an integer number (13344660).

Almost surely, 2^118521670 is an apocalyptic number.

118521670 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

118521670 is a deficient number, since it is larger than the sum of its proper divisors (94992890).

118521670 is a wasteful number, since it uses less digits than its factorization.

118521670 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9759.

The product of its (nonzero) digits is 3360, while the sum is 31.

The square root of 118521670 is about 10886.7658191035. The cubic root of 118521670 is about 491.2085535890.

The spelling of 118521670 in words is "one hundred eighteen million, five hundred twenty-one thousand, six hundred seventy".