117968157 has 20 divisors (see below), whose sum is σ = 176574816. Its totient is φ = 78489000.

The previous prime is 117968119. The next prime is 117968159. The reversal of 117968157 is 751869711.

It is not a de Polignac number, because 117968157 - 2¹⁶ = 117902621 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117968159) 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 19 ways as a sum of consecutive naturals, for example, 51282 + ... + 53532.

Almost surely, 2^117968157 is an apocalyptic number.

It is an amenable number.

117968157 is a deficient number, since it is larger than the sum of its proper divisors (58606659).

117968157 is an equidigital number, since it uses as much as digits as its factorization.

117968157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2910 (or 2901 counting only the distinct ones).

The product of its digits is 105840, while the sum is 45.

The square root of 117968157 is about 10861.3146994275. The cubic root of 117968157 is about 490.4426889244.

The spelling of 117968157 in words is "one hundred seventeen million, nine hundred sixty-eight thousand, one hundred fifty-seven".