117395961 has 4 divisors (see below), whose sum is σ = 156527952. Its totient is φ = 78263972.

The previous prime is 117395959. The next prime is 117395983. The reversal of 117395961 is 169593711.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 117395961 - 2¹ = 117395959 is a prime.

It is a super-2 number, since 2×117395961² = 27563623318227042, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (117395261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19565991 + ... + 19565996.

It is an arithmetic number, because the mean of its divisors is an integer number (39131988).

Almost surely, 2^117395961 is an apocalyptic number.

It is an amenable number.

117395961 is a deficient number, since it is larger than the sum of its proper divisors (39131991).

117395961 is an equidigital number, since it uses as much as digits as its factorization.

117395961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39131990.

The product of its digits is 51030, while the sum is 42.

The square root of 117395961 is about 10834.9416703552. The cubic root of 117395961 is about 489.6484511609.

The spelling of 117395961 in words is "one hundred seventeen million, three hundred ninety-five thousand, nine hundred sixty-one".