116172287 has 24 divisors (see below), whose sum is σ = 153850752. Its totient is φ = 86578800.

The previous prime is 116172257. The next prime is 116172299. The reversal of 116172287 is 782271611.

It is a de Polignac number, because none of the positive numbers 2^k-116172287 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (116172247) 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 23 ways as a sum of consecutive naturals, for example, 7712 + ... + 17082.

It is an arithmetic number, because the mean of its divisors is an integer number (6410448).

Almost surely, 2^116172287 is an apocalyptic number.

116172287 is a deficient number, since it is larger than the sum of its proper divisors (37678465).

116172287 is a wasteful number, since it uses less digits than its factorization.

116172287 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9419 (or 9412 counting only the distinct ones).

The product of its digits is 9408, while the sum is 35.

The square root of 116172287 is about 10778.3248698487. The cubic root of 116172287 is about 487.9412259571.

The spelling of 116172287 in words is "one hundred sixteen million, one hundred seventy-two thousand, two hundred eighty-seven".