113131097 has 4 divisors (see below), whose sum is σ = 115265700. Its totient is φ = 110996496.

The previous prime is 113131079. The next prime is 113131099. The reversal of 113131097 is 790131311.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 38204761 + 74926336 = 6181^2 + 8656^2 .

It is a cyclic number.

It is not a de Polignac number, because 113131097 - 2⁸ = 113130841 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (113131099) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1067222 + ... + 1067327.

It is an arithmetic number, because the mean of its divisors is an integer number (28816425).

Almost surely, 2^113131097 is an apocalyptic number.

It is an amenable number.

113131097 is a deficient number, since it is larger than the sum of its proper divisors (2134603).

113131097 is an equidigital number, since it uses as much as digits as its factorization.

113131097 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2134602.

The product of its (nonzero) digits is 567, while the sum is 26.

The square root of 113131097 is about 10636.3103095011. The cubic root of 113131097 is about 483.6457021083.

The spelling of 113131097 in words is "one hundred thirteen million, one hundred thirty-one thousand, ninety-seven".