116513591 has 2 divisors, whose sum is σ = 116513592. Its totient is φ = 116513590.

The previous prime is 116513569. The next prime is 116513623. The reversal of 116513591 is 195315611.

It is an a-pointer prime, because the next prime (116513623) can be obtained adding 116513591 to its sum of digits (32).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 116513591 - 2¹⁰ = 116512567 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (116510591) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 58256795 + 58256796.

It is an arithmetic number, because the mean of its divisors is an integer number (58256796).

Almost surely, 2^116513591 is an apocalyptic number.

116513591 is a deficient number, since it is larger than the sum of its proper divisors (1).

116513591 is an equidigital number, since it uses as much as digits as its factorization.

116513591 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4050, while the sum is 32.

The square root of 116513591 is about 10794.1461450177. The cubic root of 116513591 is about 488.4186016218.

The spelling of 116513591 in words is "one hundred sixteen million, five hundred thirteen thousand, five hundred ninety-one".