115512143 has 2 divisors, whose sum is σ = 115512144. Its totient is φ = 115512142.

The previous prime is 115512139. The next prime is 115512151. The reversal of 115512143 is 341215511.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 115512143 - 2² = 115512139 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (115512193) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57756071 + 57756072.

It is an arithmetic number, because the mean of its divisors is an integer number (57756072).

Almost surely, 2^115512143 is an apocalyptic number.

115512143 is a deficient number, since it is larger than the sum of its proper divisors (1).

115512143 is an equidigital number, since it uses as much as digits as its factorization.

115512143 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 600, while the sum is 23.

The square root of 115512143 is about 10747.6575587427. The cubic root of 115512143 is about 487.0152347916.

Adding to 115512143 its reverse (341215511), we get a palindrome (456727654).

The spelling of 115512143 in words is "one hundred fifteen million, five hundred twelve thousand, one hundred forty-three".