116150981 has 2 divisors, whose sum is σ = 116150982. Its totient is φ = 116150980.

The previous prime is 116150977. The next prime is 116151011. The reversal of 116150981 is 189051611.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 115132900 + 1018081 = 10730^2 + 1009^2 .

It is a cyclic number.

It is not a de Polignac number, because 116150981 - 2² = 116150977 is a prime.

It is a super-2 number, since 2×116150981² = 26982100774524722, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (116153981) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 58075490 + 58075491.

It is an arithmetic number, because the mean of its divisors is an integer number (58075491).

Almost surely, 2^116150981 is an apocalyptic number.

It is an amenable number.

116150981 is a deficient number, since it is larger than the sum of its proper divisors (1).

116150981 is an equidigital number, since it uses as much as digits as its factorization.

116150981 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2160, while the sum is 32.

The square root of 116150981 is about 10777.3364520182. The cubic root of 116150981 is about 487.9113946561.

The spelling of 116150981 in words is "one hundred sixteen million, one hundred fifty thousand, nine hundred eighty-one".