117521874 has 16 divisors (see below), whose sum is σ = 261159840. Its totient is φ = 39173940.

The previous prime is 117521861. The next prime is 117521893. The reversal of 117521874 is 478125711.

It is a super-2 number, since 2×117521874² = 27622781736943752, which contains 22 as substring.

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 7 ways as a sum of consecutive naturals, for example, 1088112 + ... + 1088219.

It is an arithmetic number, because the mean of its divisors is an integer number (16322490).

Almost surely, 2^117521874 is an apocalyptic number.

117521874 is an abundant number, since it is smaller than the sum of its proper divisors (143637966).

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

117521874 is a wasteful number, since it uses less digits than its factorization.

117521874 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2176342 (or 2176336 counting only the distinct ones).

The product of its digits is 15680, while the sum is 36.

The square root of 117521874 is about 10840.7506197680. The cubic root of 117521874 is about 489.8234460415.

The spelling of 117521874 in words is "one hundred seventeen million, five hundred twenty-one thousand, eight hundred seventy-four".