115892491 has 8 divisors (see below), whose sum is σ = 136153584. Its totient is φ = 97252320.

The previous prime is 115892429. The next prime is 115892509. The reversal of 115892491 is 194298511.

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

It is not a de Polignac number, because 115892491 - 2¹³ = 115884299 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (115892591) 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, 405076 + ... + 405361.

It is an arithmetic number, because the mean of its divisors is an integer number (17019198).

Almost surely, 2^115892491 is an apocalyptic number.

115892491 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

115892491 is a deficient number, since it is larger than the sum of its proper divisors (20261093).

115892491 is a wasteful number, since it uses less digits than its factorization.

115892491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 810461.

The product of its digits is 25920, while the sum is 40.

The square root of 115892491 is about 10765.3374772926. The cubic root of 115892491 is about 487.5491825023.

The spelling of 115892491 in words is "one hundred fifteen million, eight hundred ninety-two thousand, four hundred ninety-one".