116731081 has 4 divisors (see below), whose sum is σ = 116760964. Its totient is φ = 116701200.

The previous prime is 116731073. The next prime is 116731103. The reversal of 116731081 is 180137611.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 180137611 = 6971 ⋅25841.

It can be written as a sum of positive squares in 2 ways, for example, as 27994681 + 88736400 = 5291^2 + 9420^2 .

It is a cyclic number.

It is not a de Polignac number, because 116731081 - 2³ = 116731073 is a prime.

It is a super-2 number, since 2×116731081² = 27252290542857122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (116731031) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8010 + ... + 17251.

It is an arithmetic number, because the mean of its divisors is an integer number (29190241).

Almost surely, 2^116731081 is an apocalyptic number.

It is an amenable number.

116731081 is a deficient number, since it is larger than the sum of its proper divisors (29883).

116731081 is an equidigital number, since it uses as much as digits as its factorization.

116731081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29882.

The product of its (nonzero) digits is 1008, while the sum is 28.

The square root of 116731081 is about 10804.2158901051. The cubic root of 116731081 is about 488.7223147868.

Adding to 116731081 its reverse (180137611), we get a palindrome (296868692).

The spelling of 116731081 in words is "one hundred sixteen million, seven hundred thirty-one thousand, eighty-one".