115404881 has 4 divisors (see below), whose sum is σ = 117860352. Its totient is φ = 112949412.

The previous prime is 115404851. The next prime is 115404899. The reversal of 115404881 is 188404511.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 115404881 - 2²² = 111210577 is a prime.

It is a super-2 number, since 2×115404881² = 26636573117248322, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (115404811) 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, 1227665 + ... + 1227758.

It is an arithmetic number, because the mean of its divisors is an integer number (29465088).

Almost surely, 2^115404881 is an apocalyptic number.

It is an amenable number.

115404881 is a deficient number, since it is larger than the sum of its proper divisors (2455471).

115404881 is an equidigital number, since it uses as much as digits as its factorization.

115404881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2455470.

The product of its (nonzero) digits is 5120, while the sum is 32.

The square root of 115404881 is about 10742.6663822349. Note that the first 3 decimals coincide. The cubic root of 115404881 is about 486.8644442797.

The spelling of 115404881 in words is "one hundred fifteen million, four hundred four thousand, eight hundred eighty-one".