116090081 has 4 divisors (see below), whose sum is σ = 116114964. Its totient is φ = 116065200.

The previous prime is 116090069. The next prime is 116090083. The reversal of 116090081 is 180090611.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 7075600 + 109014481 = 2660^2 + 10441^2 .

It is a cyclic number.

It is not a de Polignac number, because 116090081 - 2⁶ = 116090017 is a prime.

It is a super-2 number, since 2×116090081² = 26953813813173122, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 116090081.

It is not an unprimeable number, because it can be changed into a prime (116090083) 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, 3110 + ... + 15551.

It is an arithmetic number, because the mean of its divisors is an integer number (29028741).

It is a Poulet number, since it divides 2^116090080-1.

Almost surely, 2^116090081 is an apocalyptic number.

116090081 is the 6221-st octagonal number.

It is an amenable number.

116090081 is a deficient number, since it is larger than the sum of its proper divisors (24883).

116090081 is an equidigital number, since it uses as much as digits as its factorization.

116090081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24882.

The product of its (nonzero) digits is 432, while the sum is 26.

The square root of 116090081 is about 10774.5107081482. The cubic root of 116090081 is about 487.8261062429.

The spelling of 116090081 in words is "one hundred sixteen million, ninety thousand, eighty-one".