115331143 has 2 divisors, whose sum is σ = 115331144. Its totient is φ = 115331142.

The previous prime is 115331093. The next prime is 115331171. The reversal of 115331143 is 341133511.

It is a strong prime.

It is an emirp because it is prime and its reverse (341133511) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-115331143 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (115331243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57665571 + 57665572.

It is an arithmetic number, because the mean of its divisors is an integer number (57665572).

Almost surely, 2^115331143 is an apocalyptic number.

115331143 is a deficient number, since it is larger than the sum of its proper divisors (1).

115331143 is an equidigital number, since it uses as much as digits as its factorization.

115331143 is an evil number, because the sum of its binary digits is even.

The product of its digits is 540, while the sum is 22.

The square root of 115331143 is about 10739.2338181083. The cubic root of 115331143 is about 486.7607281024.

Adding to 115331143 its reverse (341133511), we get a palindrome (456464654).

The spelling of 115331143 in words is "one hundred fifteen million, three hundred thirty-one thousand, one hundred forty-three".