115904811 has 16 divisors (see below), whose sum is σ = 169987968. Its totient is φ = 70242920.

The previous prime is 115904809. The next prime is 115904821. The reversal of 115904811 is 118409511.

It is a happy number.

It is not a de Polignac number, because 115904811 - 2¹ = 115904809 is a prime.

It is not an unprimeable number, because it can be changed into a prime (115904821) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10521 + ... + 18506.

It is an arithmetic number, because the mean of its divisors is an integer number (10624248).

Almost surely, 2^115904811 is an apocalyptic number.

115904811 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

115904811 is a deficient number, since it is larger than the sum of its proper divisors (54083157).

115904811 is an equidigital number, since it uses as much as digits as its factorization.

115904811 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29063 (or 29041 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 30.

The square root of 115904811 is about 10765.9096689504. The cubic root of 115904811 is about 487.5664582638.

The spelling of 115904811 in words is "one hundred fifteen million, nine hundred four thousand, eight hundred eleven".