116919161 has 4 divisors (see below), whose sum is σ = 116942592. Its totient is φ = 116895732.

The previous prime is 116919139. The next prime is 116919181. The reversal of 116919161 is 161919611.

It is a happy number.

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 a de Polignac number, because none of the positive numbers 2^k-116919161 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (116919181) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 905 + ... + 15318.

It is an arithmetic number, because the mean of its divisors is an integer number (29235648).

Almost surely, 2^116919161 is an apocalyptic number.

It is an amenable number.

116919161 is a deficient number, since it is larger than the sum of its proper divisors (23431).

116919161 is an equidigital number, since it uses as much as digits as its factorization.

116919161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23430.

The product of its digits is 2916, while the sum is 35.

The square root of 116919161 is about 10812.9163966064. The cubic root of 116919161 is about 488.9846544282.

The spelling of 116919161 in words is "one hundred sixteen million, nine hundred nineteen thousand, one hundred sixty-one".