115213643 has 2 divisors, whose sum is σ = 115213644. Its totient is φ = 115213642.

The previous prime is 115213603. The next prime is 115213667. The reversal of 115213643 is 346312511.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 115213643 - 2⁸ = 115213387 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (115213603) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57606821 + 57606822.

It is an arithmetic number, because the mean of its divisors is an integer number (57606822).

Almost surely, 2^115213643 is an apocalyptic number.

115213643 is a deficient number, since it is larger than the sum of its proper divisors (1).

115213643 is an equidigital number, since it uses as much as digits as its factorization.

115213643 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2160, while the sum is 26.

The square root of 115213643 is about 10733.7618289209. The cubic root of 115213643 is about 486.5953671010.

The spelling of 115213643 in words is "one hundred fifteen million, two hundred thirteen thousand, six hundred forty-three".