115751291 has 2 divisors, whose sum is σ = 115751292. Its totient is φ = 115751290.

The previous prime is 115751263. The next prime is 115751309. The reversal of 115751291 is 192157511.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 115751291 - 2¹⁴ = 115734907 is a prime.

It is a super-2 number, since 2×115751291² = 26796722736333362, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (115751191) 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, 57875645 + 57875646.

It is an arithmetic number, because the mean of its divisors is an integer number (57875646).

Almost surely, 2^115751291 is an apocalyptic number.

115751291 is a deficient number, since it is larger than the sum of its proper divisors (1).

115751291 is an equidigital number, since it uses as much as digits as its factorization.

115751291 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3150, while the sum is 32.

The square root of 115751291 is about 10758.7773933658. Note that the first 3 decimals coincide. The cubic root of 115751291 is about 487.3510968419.

The spelling of 115751291 in words is "one hundred fifteen million, seven hundred fifty-one thousand, two hundred ninety-one".