117911572 has 12 divisors (see below), whose sum is σ = 211378356. Its totient is φ = 57517760.

The previous prime is 117911533. The next prime is 117911603. The reversal of 117911572 is 275119711.

It can be written as a sum of positive squares in 2 ways, for example, as 20376196 + 97535376 = 4514^2 + 9876^2 .

It is a super-2 number, since 2×117911572² = 27806277623022368, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 359323 + ... + 359650.

It is an arithmetic number, because the mean of its divisors is an integer number (17614863).

Almost surely, 2^117911572 is an apocalyptic number.

It is an amenable number.

117911572 is a deficient number, since it is larger than the sum of its proper divisors (93466784).

117911572 is a wasteful number, since it uses less digits than its factorization.

117911572 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 719018 (or 719016 counting only the distinct ones).

The product of its digits is 4410, while the sum is 34.

The square root of 117911572 is about 10858.7094997518. The cubic root of 117911572 is about 490.3642605908.

The spelling of 117911572 in words is "one hundred seventeen million, nine hundred eleven thousand, five hundred seventy-two".