116631397 has 2 divisors, whose sum is σ = 116631398. Its totient is φ = 116631396.

The previous prime is 116631371. The next prime is 116631401. The reversal of 116631397 is 793136611.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 116618401 + 12996 = 10799^2 + 114^2 .

It is a cyclic number.

It is not a de Polignac number, because 116631397 - 2¹¹ = 116629349 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (116631337) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 58315698 + 58315699.

It is an arithmetic number, because the mean of its divisors is an integer number (58315699).

Almost surely, 2^116631397 is an apocalyptic number.

It is an amenable number.

116631397 is a deficient number, since it is larger than the sum of its proper divisors (1).

116631397 is an equidigital number, since it uses as much as digits as its factorization.

116631397 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 20412, while the sum is 37.

The square root of 116631397 is about 10799.6017056186. The cubic root of 116631397 is about 488.5831582767.

The spelling of 116631397 in words is "one hundred sixteen million, six hundred thirty-one thousand, three hundred ninety-seven".