113806091 has 4 divisors (see below), whose sum is σ = 130064112. Its totient is φ = 97548072.

The previous prime is 113806087. The next prime is 113806127. The reversal of 113806091 is 190608311.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 190608311 = 101 ⋅1887211.

It is a cyclic number.

It is not a de Polignac number, because 113806091 - 2² = 113806087 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (113806081) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8129000 + ... + 8129013.

It is an arithmetic number, because the mean of its divisors is an integer number (32516028).

Almost surely, 2^113806091 is an apocalyptic number.

113806091 is a deficient number, since it is larger than the sum of its proper divisors (16258021).

113806091 is an equidigital number, since it uses as much as digits as its factorization.

113806091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16258020.

The product of its (nonzero) digits is 1296, while the sum is 29.

The square root of 113806091 is about 10667.9937664024. The cubic root of 113806091 is about 484.6056822595.

It can be divided in two parts, 11380 and 6091, that added together give a palindrome (17471).

The spelling of 113806091 in words is "one hundred thirteen million, eight hundred six thousand, ninety-one".