116145961 has 2 divisors, whose sum is σ = 116145962. Its totient is φ = 116145960.

The previous prime is 116145959. The next prime is 116145971. The reversal of 116145961 is 169541611.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 69305625 + 46840336 = 8325^2 + 6844^2 .

It is a cyclic number.

It is not a de Polignac number, because 116145961 - 2¹ = 116145959 is a prime.

It is a super-2 number, since 2×116145961² = 26979768513227042, which contains 22 as substring.

Together with 116145959, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (116145941) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 58072980 + 58072981.

It is an arithmetic number, because the mean of its divisors is an integer number (58072981).

Almost surely, 2^116145961 is an apocalyptic number.

It is an amenable number.

116145961 is a deficient number, since it is larger than the sum of its proper divisors (1).

116145961 is an equidigital number, since it uses as much as digits as its factorization.

116145961 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6480, while the sum is 34.

The square root of 116145961 is about 10777.1035533672. The cubic root of 116145961 is about 487.9043654416.

The spelling of 116145961 in words is "one hundred sixteen million, one hundred forty-five thousand, nine hundred sixty-one".