113266991 has 2 divisors, whose sum is σ = 113266992. Its totient is φ = 113266990.

The previous prime is 113266981. The next prime is 113267017. The reversal of 113266991 is 199662311.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 113266991 - 2¹⁸ = 113004847 is a prime.

It is a super-2 number, since 2×113266991² = 25658822500388162, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (113266921) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56633495 + 56633496.

It is an arithmetic number, because the mean of its divisors is an integer number (56633496).

Almost surely, 2^113266991 is an apocalyptic number.

113266991 is a deficient number, since it is larger than the sum of its proper divisors (1).

113266991 is an equidigital number, since it uses as much as digits as its factorization.

113266991 is an evil number, because the sum of its binary digits is even.

The product of its digits is 17496, while the sum is 38.

The square root of 113266991 is about 10642.6966037748. The cubic root of 113266991 is about 483.8392776799.

The spelling of 113266991 in words is "one hundred thirteen million, two hundred sixty-six thousand, nine hundred ninety-one".