116993481 has 16 divisors (see below), whose sum is σ = 173795328. Its totient is φ = 69395600.

The previous prime is 116993449. The next prime is 116993489. The reversal of 116993481 is 184399611.

It is a cyclic number.

It is not a de Polignac number, because 116993481 - 2⁵ = 116993449 is a prime.

It is a super-2 number, since 2×116993481² = 27374949192994722, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (116993489) 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, 36165 + ... + 39266.

It is an arithmetic number, because the mean of its divisors is an integer number (10862208).

Almost surely, 2^116993481 is an apocalyptic number.

116993481 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

116993481 is a deficient number, since it is larger than the sum of its proper divisors (56801847).

116993481 is a wasteful number, since it uses less digits than its factorization.

116993481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75492.

The product of its digits is 46656, while the sum is 42.

The square root of 116993481 is about 10816.3524813127. The cubic root of 116993481 is about 489.0882406489.

The spelling of 116993481 in words is "one hundred sixteen million, nine hundred ninety-three thousand, four hundred eighty-one".