115458987 has 8 divisors (see below), whose sum is σ = 175937536. Its totient is φ = 65976552.

The previous prime is 115458977. The next prime is 115458997. The reversal of 115458987 is 789854511.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (115458977) and next prime (115458997).

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

It is not a de Polignac number, because 115458987 - 2⁴ = 115458971 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (115458977) 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, 2749003 + ... + 2749044.

It is an arithmetic number, because the mean of its divisors is an integer number (21992192).

Almost surely, 2^115458987 is an apocalyptic number.

115458987 is a deficient number, since it is larger than the sum of its proper divisors (60478549).

115458987 is an equidigital number, since it uses as much as digits as its factorization.

115458987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5498057.

The product of its digits is 403200, while the sum is 48.

The square root of 115458987 is about 10745.1843632392. The cubic root of 115458987 is about 486.9405189706.

The spelling of 115458987 in words is "one hundred fifteen million, four hundred fifty-eight thousand, nine hundred eighty-seven".