116172111 has 16 divisors (see below), whose sum is σ = 172909440. Its totient is φ = 68769120.

The previous prime is 116172083. The next prime is 116172143. The reversal of 116172111 is 111271611.

It is not a de Polignac number, because 116172111 - 2⁵ = 116172079 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (116172151) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39516 + ... + 42353.

It is an arithmetic number, because the mean of its divisors is an integer number (10806840).

Almost surely, 2^116172111 is an apocalyptic number.

116172111 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

116172111 is a deficient number, since it is larger than the sum of its proper divisors (56737329).

116172111 is a wasteful number, since it uses less digits than its factorization.

116172111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81926.

The product of its digits is 84, while the sum is 21.

The square root of 116172111 is about 10778.3167053116. The cubic root of 116172111 is about 487.9409795481.

The spelling of 116172111 in words is "one hundred sixteen million, one hundred seventy-two thousand, one hundred eleven".