116640749 has 2 divisors, whose sum is σ = 116640750. Its totient is φ = 116640748.

The previous prime is 116640739. The next prime is 116640767. The reversal of 116640749 is 947046611.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 94381225 + 22259524 = 9715^2 + 4718^2 .

It is a cyclic number.

It is not a de Polignac number, because 116640749 - 2⁸ = 116640493 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (116640709) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 58320374 + 58320375.

It is an arithmetic number, because the mean of its divisors is an integer number (58320375).

Almost surely, 2^116640749 is an apocalyptic number.

It is an amenable number.

116640749 is a deficient number, since it is larger than the sum of its proper divisors (1).

116640749 is an equidigital number, since it uses as much as digits as its factorization.

116640749 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36288, while the sum is 38.

The square root of 116640749 is about 10800.0346758703. The cubic root of 116640749 is about 488.5962168176.

The spelling of 116640749 in words is "one hundred sixteen million, six hundred forty thousand, seven hundred forty-nine".