116991054 has 20 divisors (see below), whose sum is σ = 262146984. Its totient is φ = 38996964.

The previous prime is 116991029. The next prime is 116991067. The reversal of 116991054 is 450199611.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 360922 + ... + 361245.

Almost surely, 2^116991054 is an apocalyptic number.

116991054 is an abundant number, since it is smaller than the sum of its proper divisors (145155930).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

116991054 is an equidigital number, since it uses as much as digits as its factorization.

116991054 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 722181 (or 722172 counting only the distinct ones).

The product of its (nonzero) digits is 9720, while the sum is 36.

The square root of 116991054 is about 10816.2402894906. The cubic root of 116991054 is about 489.0848586218.

The spelling of 116991054 in words is "one hundred sixteen million, nine hundred ninety-one thousand, fifty-four".