116290181 has 6 divisors (see below), whose sum is σ = 135276390. Its totient is φ = 99677256.

The previous prime is 116290177. The next prime is 116290199. The reversal of 116290181 is 181092611.

It can be written as a sum of positive squares in only one way, i.e., 112169281 + 4120900 = 10591^2 + 2030^2 .

It is not a de Polignac number, because 116290181 - 2² = 116290177 is a prime.

It is a super-2 number, since 2×116290181² = 27046812394025522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (116290151) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1186586 + ... + 1186683.

It is an arithmetic number, because the mean of its divisors is an integer number (22546065).

Almost surely, 2^116290181 is an apocalyptic number.

It is an amenable number.

116290181 is a deficient number, since it is larger than the sum of its proper divisors (18986209).

116290181 is an equidigital number, since it uses as much as digits as its factorization.

116290181 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2373283 (or 2373276 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 29.

The square root of 116290181 is about 10783.7925146954. The cubic root of 116290181 is about 488.1062277145.

The spelling of 116290181 in words is "one hundred sixteen million, two hundred ninety thousand, one hundred eighty-one".