116149081 has 2 divisors, whose sum is σ = 116149082. Its totient is φ = 116149080.

The previous prime is 116149051. The next prime is 116149087. The reversal of 116149081 is 180941611.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 98010000 + 18139081 = 9900^2 + 4259^2 .

It is an emirp because it is prime and its reverse (180941611) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-116149081 is a prime.

It is a super-2 number, since 2×116149081² = 26981218034289122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (116149087) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 58074540 + 58074541.

It is an arithmetic number, because the mean of its divisors is an integer number (58074541).

Almost surely, 2^116149081 is an apocalyptic number.

It is an amenable number.

116149081 is a deficient number, since it is larger than the sum of its proper divisors (1).

116149081 is an equidigital number, since it uses as much as digits as its factorization.

116149081 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1728, while the sum is 31.

The square root of 116149081 is about 10777.2483037183. The cubic root of 116149081 is about 487.9087342203.

The spelling of 116149081 in words is "one hundred sixteen million, one hundred forty-nine thousand, eighty-one".