116871961 has 2 divisors, whose sum is σ = 116871962. Its totient is φ = 116871960.

The previous prime is 116871959. The next prime is 116871971. The reversal of 116871961 is 169178611.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 114169225 + 2702736 = 10685^2 + 1644^2 .

It is a cyclic number.

It is not a de Polignac number, because 116871961 - 2¹ = 116871959 is a prime.

Together with 116871959, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (116871941) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 58435980 + 58435981.

It is an arithmetic number, because the mean of its divisors is an integer number (58435981).

Almost surely, 2^116871961 is an apocalyptic number.

It is an amenable number.

116871961 is a deficient number, since it is larger than the sum of its proper divisors (1).

116871961 is an equidigital number, since it uses as much as digits as its factorization.

116871961 is an evil number, because the sum of its binary digits is even.

The product of its digits is 18144, while the sum is 40.

The square root of 116871961 is about 10810.7336013797. The cubic root of 116871961 is about 488.9188449065.

The spelling of 116871961 in words is "one hundred sixteen million, eight hundred seventy-one thousand, nine hundred sixty-one".