113631197 has 4 divisors (see below), whose sum is σ = 113817180. Its totient is φ = 113445216.

The previous prime is 113631187. The next prime is 113631209. The reversal of 113631197 is 791136311.

It is a happy number.

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 27994681 + 85636516 = 5291^2 + 9254^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-113631197 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113631137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 92072 + ... + 93297.

It is an arithmetic number, because the mean of its divisors is an integer number (28454295).

Almost surely, 2^113631197 is an apocalyptic number.

It is an amenable number.

113631197 is a deficient number, since it is larger than the sum of its proper divisors (185983).

113631197 is an equidigital number, since it uses as much as digits as its factorization.

113631197 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 185982.

The product of its digits is 3402, while the sum is 32.

The square root of 113631197 is about 10659.7934782997. The cubic root of 113631197 is about 484.3573121921.

The spelling of 113631197 in words is "one hundred thirteen million, six hundred thirty-one thousand, one hundred ninety-seven".