115902143 has 4 divisors (see below), whose sum is σ = 132459600. Its totient is φ = 99344688.

The previous prime is 115902139. The next prime is 115902169. The reversal of 115902143 is 341209511.

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 115902143 - 2² = 115902139 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115902133) 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, 8278718 + ... + 8278731.

It is an arithmetic number, because the mean of its divisors is an integer number (33114900).

Almost surely, 2^115902143 is an apocalyptic number.

115902143 is a deficient number, since it is larger than the sum of its proper divisors (16557457).

115902143 is an equidigital number, since it uses as much as digits as its factorization.

115902143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16557456.

The product of its (nonzero) digits is 1080, while the sum is 26.

The square root of 115902143 is about 10765.7857585965. The cubic root of 115902143 is about 487.5627171557.

The spelling of 115902143 in words is "one hundred fifteen million, nine hundred two thousand, one hundred forty-three".