117971570 has 32 divisors (see below), whose sum is σ = 225331200. Its totient is φ = 44343936.

The previous prime is 117971549. The next prime is 117971573. The reversal of 117971570 is 75179711.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is not an unprimeable number, because it can be changed into a prime (117971573) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21686 + ... + 26574.

It is an arithmetic number, because the mean of its divisors is an integer number (7041600).

Almost surely, 2^117971570 is an apocalyptic number.

117971570 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

117971570 is a deficient number, since it is larger than the sum of its proper divisors (107359630).

117971570 is a wasteful number, since it uses less digits than its factorization.

117971570 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5042.

The product of its (nonzero) digits is 15435, while the sum is 38.

The square root of 117971570 is about 10861.4718155506. The cubic root of 117971570 is about 490.4474186322.

The spelling of 117971570 in words is "one hundred seventeen million, nine hundred seventy-one thousand, five hundred seventy".