115500851 has 4 divisors (see below), whose sum is σ = 115538304. Its totient is φ = 115463400.

The previous prime is 115500821. The next prime is 115500859. The reversal of 115500851 is 158005511.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 158005511 = 101 ⋅1564411.

It is a cyclic number.

It is not a de Polignac number, because 115500851 - 2⁶ = 115500787 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 115500851.

It is not an unprimeable number, because it can be changed into a prime (115500859) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13640 + ... + 20421.

It is an arithmetic number, because the mean of its divisors is an integer number (28884576).

Almost surely, 2^115500851 is an apocalyptic number.

115500851 is a deficient number, since it is larger than the sum of its proper divisors (37453).

115500851 is an equidigital number, since it uses as much as digits as its factorization.

115500851 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37452.

The product of its (nonzero) digits is 1000, while the sum is 26.

The square root of 115500851 is about 10747.1322221326. The cubic root of 115500851 is about 486.9993647278. Note that the first 3 decimals are identical.

The spelling of 115500851 in words is "one hundred fifteen million, five hundred thousand, eight hundred fifty-one".