113291 has 4 divisors (see below), whose sum is σ = 114072. Its totient is φ = 112512.

The previous prime is 113287. The next prime is 113327. The reversal of 113291 is 192311.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 113291 - 2² = 113287 is a prime.

It is a Duffinian number.

It is a plaindrome in base 12.

It is not an unprimeable number, because it can be changed into a prime (113591) 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, 101 + ... + 486.

It is an arithmetic number, because the mean of its divisors is an integer number (28518).

2¹¹³²⁹¹ is an apocalyptic number.

113291 is a deficient number, since it is larger than the sum of its proper divisors (781).

113291 is an equidigital number, since it uses as much as digits as its factorization.

113291 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 780.

The product of its digits is 54, while the sum is 17.

The square root of 113291 is about 336.5872843706. The cubic root of 113291 is about 48.3873461445.

It can be divided in two parts, 113 and 291, that added together give a palindrome (404).

The spelling of 113291 in words is "one hundred thirteen thousand, two hundred ninety-one".