115800749 has 2 divisors, whose sum is σ = 115800750. Its totient is φ = 115800748.

The previous prime is 115800743. The next prime is 115800781. The reversal of 115800749 is 947008511.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 111978724 + 3822025 = 10582^2 + 1955^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-115800749 is a prime.

It is a super-2 number, since 2×115800749² = 26819626937922002, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (115800743) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57900374 + 57900375.

It is an arithmetic number, because the mean of its divisors is an integer number (57900375).

Almost surely, 2^115800749 is an apocalyptic number.

It is an amenable number.

115800749 is a deficient number, since it is larger than the sum of its proper divisors (1).

115800749 is an equidigital number, since it uses as much as digits as its factorization.

115800749 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10080, while the sum is 35.

The square root of 115800749 is about 10761.0756432617. The cubic root of 115800749 is about 487.4204984535.

The spelling of 115800749 in words is "one hundred fifteen million, eight hundred thousand, seven hundred forty-nine".