113490191 has 2 divisors, whose sum is σ = 113490192. Its totient is φ = 113490190.

The previous prime is 113490187. The next prime is 113490229. The reversal of 113490191 is 191094311.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 113490191 - 2² = 113490187 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (113490131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56745095 + 56745096.

It is an arithmetic number, because the mean of its divisors is an integer number (56745096).

Almost surely, 2^113490191 is an apocalyptic number.

113490191 is a deficient number, since it is larger than the sum of its proper divisors (1).

113490191 is an equidigital number, since it uses as much as digits as its factorization.

113490191 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 972, while the sum is 29.

The square root of 113490191 is about 10653.1775072041. The cubic root of 113490191 is about 484.1568814457.

The spelling of 113490191 in words is "one hundred thirteen million, four hundred ninety thousand, one hundred ninety-one".