115940291 has 2 divisors, whose sum is σ = 115940292. Its totient is φ = 115940290.

The previous prime is 115940287. The next prime is 115940329. The reversal of 115940291 is 192049511.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 115940291 - 2² = 115940287 is a prime.

It is not a weakly prime, because it can be changed into another prime (115940191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57970145 + 57970146.

It is an arithmetic number, because the mean of its divisors is an integer number (57970146).

Almost surely, 2^115940291 is an apocalyptic number.

115940291 is a deficient number, since it is larger than the sum of its proper divisors (1).

115940291 is an equidigital number, since it uses as much as digits as its factorization.

115940291 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3240, while the sum is 32.

The square root of 115940291 is about 10767.5573367408. The cubic root of 115940291 is about 487.6162033749.

The spelling of 115940291 in words is "one hundred fifteen million, nine hundred forty thousand, two hundred ninety-one".