115905443 has 4 divisors (see below), whose sum is σ = 116071488. Its totient is φ = 115739400.

The previous prime is 115905437. The next prime is 115905451. The reversal of 115905443 is 344509511.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 115905443 - 2⁶ = 115905379 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (115905143) 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, 81971 + ... + 83372.

It is an arithmetic number, because the mean of its divisors is an integer number (29017872).

Almost surely, 2^115905443 is an apocalyptic number.

115905443 is a deficient number, since it is larger than the sum of its proper divisors (166045).

115905443 is an equidigital number, since it uses as much as digits as its factorization.

115905443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 166044.

The product of its (nonzero) digits is 10800, while the sum is 32.

The square root of 115905443 is about 10765.9390208193. The cubic root of 115905443 is about 487.5673444549.

The spelling of 115905443 in words is "one hundred fifteen million, nine hundred five thousand, four hundred forty-three".