115650857 has 4 divisors (see below), whose sum is σ = 132172416. Its totient is φ = 99129300.

The previous prime is 115650851. The next prime is 115650859. The reversal of 115650857 is 758056511.

It is a happy number.

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: 758056511 = 2213 ⋅342547.

It is a cyclic number.

It is not a de Polignac number, because 115650857 - 2¹² = 115646761 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 115650857.

It is not an unprimeable number, because it can be changed into a prime (115650851) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8260769 + ... + 8260782.

It is an arithmetic number, because the mean of its divisors is an integer number (33043104).

Almost surely, 2^115650857 is an apocalyptic number.

It is an amenable number.

115650857 is a deficient number, since it is larger than the sum of its proper divisors (16521559).

115650857 is an equidigital number, since it uses as much as digits as its factorization.

115650857 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16521558.

The product of its (nonzero) digits is 42000, while the sum is 38.

The square root of 115650857 is about 10754.1088426703. The cubic root of 115650857 is about 487.2101026380.

The spelling of 115650857 in words is "one hundred fifteen million, six hundred fifty thousand, eight hundred fifty-seven".