115556287 has 8 divisors (see below), whose sum is σ = 144070272. Its totient is φ = 90043800.

The previous prime is 115556281. The next prime is 115556303. The reversal of 115556287 is 782655511.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 115556287 - 2¹⁵ = 115523519 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115556281) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 750289 + ... + 750442.

It is an arithmetic number, because the mean of its divisors is an integer number (18008784).

Almost surely, 2^115556287 is an apocalyptic number.

115556287 is a deficient number, since it is larger than the sum of its proper divisors (28513985).

115556287 is a wasteful number, since it uses less digits than its factorization.

115556287 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1500749.

The product of its digits is 84000, while the sum is 40.

The square root of 115556287 is about 10749.7110193716. The cubic root of 115556287 is about 487.0772659683.

The spelling of 115556287 in words is "one hundred fifteen million, five hundred fifty-six thousand, two hundred eighty-seven".