115143031 has 2 divisors, whose sum is σ = 115143032. Its totient is φ = 115143030.

The previous prime is 115142981. The next prime is 115143073. The reversal of 115143031 is 130341511.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 115143031 - 2¹⁵ = 115110263 is a prime.

It is a super-2 number, since 2×115143031² = 26515835175733922, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (115143631) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57571515 + 57571516.

It is an arithmetic number, because the mean of its divisors is an integer number (57571516).

Almost surely, 2^115143031 is an apocalyptic number.

115143031 is a deficient number, since it is larger than the sum of its proper divisors (1).

115143031 is an equidigital number, since it uses as much as digits as its factorization.

115143031 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 180, while the sum is 19.

The square root of 115143031 is about 10730.4720772201. The cubic root of 115143031 is about 486.4959387898.

Adding to 115143031 its reverse (130341511), we get a palindrome (245484542).

The spelling of 115143031 in words is "one hundred fifteen million, one hundred forty-three thousand, thirty-one".