115435391 has 2 divisors, whose sum is σ = 115435392. Its totient is φ = 115435390.

The previous prime is 115435387. The next prime is 115435409. The reversal of 115435391 is 193534511.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 115435391 - 2² = 115435387 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (115435291) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57717695 + 57717696.

It is an arithmetic number, because the mean of its divisors is an integer number (57717696).

Almost surely, 2^115435391 is an apocalyptic number.

115435391 is a deficient number, since it is larger than the sum of its proper divisors (1).

115435391 is an equidigital number, since it uses as much as digits as its factorization.

115435391 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8100, while the sum is 32.

The square root of 115435391 is about 10744.0863269056. The cubic root of 115435391 is about 486.9073451958.

The spelling of 115435391 in words is "one hundred fifteen million, four hundred thirty-five thousand, three hundred ninety-one".