115756969 has 2 divisors, whose sum is σ = 115756970. Its totient is φ = 115756968.

The previous prime is 115756943. The next prime is 115757023. The reversal of 115756969 is 969657511.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 114746944 + 1010025 = 10712^2 + 1005^2 .

It is an emirp because it is prime and its reverse (969657511) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 115756969 - 2⁵ = 115756937 is a prime.

It is a super-2 number, since 2×115756969² = 26799351744133922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (115756919) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57878484 + 57878485.

It is an arithmetic number, because the mean of its divisors is an integer number (57878485).

Almost surely, 2^115756969 is an apocalyptic number.

It is an amenable number.

115756969 is a deficient number, since it is larger than the sum of its proper divisors (1).

115756969 is an equidigital number, since it uses as much as digits as its factorization.

115756969 is an evil number, because the sum of its binary digits is even.

The product of its digits is 510300, while the sum is 49.

The square root of 115756969 is about 10759.0412676967. The cubic root of 115756969 is about 487.3590654623.

The spelling of 115756969 in words is "one hundred fifteen million, seven hundred fifty-six thousand, nine hundred sixty-nine".