116161439 has 4 divisors (see below), whose sum is σ = 117076224. Its totient is φ = 115246656.

The previous prime is 116161429. The next prime is 116161457. The reversal of 116161439 is 934161611.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-116161439 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (116161429) 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, 457202 + ... + 457455.

It is an arithmetic number, because the mean of its divisors is an integer number (29269056).

Almost surely, 2^116161439 is an apocalyptic number.

116161439 is a deficient number, since it is larger than the sum of its proper divisors (914785).

116161439 is an equidigital number, since it uses as much as digits as its factorization.

116161439 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 914784.

The product of its digits is 3888, while the sum is 32.

The square root of 116161439 is about 10777.8216259131. The cubic root of 116161439 is about 487.9260377359.

The spelling of 116161439 in words is "one hundred sixteen million, one hundred sixty-one thousand, four hundred thirty-nine".