115870851 has 16 divisors (see below), whose sum is σ = 171832320. Its totient is φ = 77169960.

The previous prime is 115870847. The next prime is 115870877. The reversal of 115870851 is 158078511.

It is a happy number.

It is not a de Polignac number, because 115870851 - 2² = 115870847 is a prime.

It is a super-2 number, since 2×115870851² = 26852108222928402, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (115870891) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 41386 + ... + 44096.

It is an arithmetic number, because the mean of its divisors is an integer number (10739520).

Almost surely, 2^115870851 is an apocalyptic number.

115870851 is a deficient number, since it is larger than the sum of its proper divisors (55961469).

115870851 is a wasteful number, since it uses less digits than its factorization.

115870851 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4303 (or 4297 counting only the distinct ones).

The product of its (nonzero) digits is 11200, while the sum is 36.

The square root of 115870851 is about 10764.3323527286. The cubic root of 115870851 is about 487.5188347753.

The spelling of 115870851 in words is "one hundred fifteen million, eight hundred seventy thousand, eight hundred fifty-one".