115136761 has 4 divisors (see below), whose sum is σ = 115158672. Its totient is φ = 115114852.

The previous prime is 115136743. The next prime is 115136797. The reversal of 115136761 is 167631511.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 167631511 = 2731 ⋅61381.

It is a cyclic number.

It is not a de Polignac number, because 115136761 - 2⁷ = 115136633 is a prime.

It is a super-2 number, since 2×115136761² = 26512947467142242, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (115136701) 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 in 3 ways as a sum of consecutive naturals, for example, 2166 + ... + 15328.

It is an arithmetic number, because the mean of its divisors is an integer number (28789668).

Almost surely, 2^115136761 is an apocalyptic number.

It is an amenable number.

115136761 is a deficient number, since it is larger than the sum of its proper divisors (21911).

115136761 is an equidigital number, since it uses as much as digits as its factorization.

115136761 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21910.

The product of its digits is 3780, while the sum is 31.

The square root of 115136761 is about 10730.1799146147. The cubic root of 115136761 is about 486.4871080776.

The spelling of 115136761 in words is "one hundred fifteen million, one hundred thirty-six thousand, seven hundred sixty-one".