113290391 has 2 divisors, whose sum is σ = 113290392. Its totient is φ = 113290390.

The previous prime is 113290381. The next prime is 113290393. The reversal of 113290391 is 193092311.

It is a strong prime.

It is an emirp because it is prime and its reverse (193092311) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-113290391 is a prime.

Together with 113290393, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (113290393) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56645195 + 56645196.

It is an arithmetic number, because the mean of its divisors is an integer number (56645196).

Almost surely, 2^113290391 is an apocalyptic number.

113290391 is a deficient number, since it is larger than the sum of its proper divisors (1).

113290391 is an equidigital number, since it uses as much as digits as its factorization.

113290391 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1458, while the sum is 29.

The square root of 113290391 is about 10643.7958924436. The cubic root of 113290391 is about 483.8725944166.

The spelling of 113290391 in words is "one hundred thirteen million, two hundred ninety thousand, three hundred ninety-one".