113388197 has 4 divisors (see below), whose sum is σ = 122110380. Its totient is φ = 104666016.

The previous prime is 113388193. The next prime is 113388217. The reversal of 113388197 is 791883311.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 791883311 = 19 ⋅41678069.

It can be written as a sum of positive squares in 2 ways, for example, as 26357956 + 87030241 = 5134^2 + 9329^2 .

It is not a de Polignac number, because 113388197 - 2² = 113388193 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 (113388193) 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, 4361072 + ... + 4361097.

It is an arithmetic number, because the mean of its divisors is an integer number (30527595).

Almost surely, 2^113388197 is an apocalyptic number.

It is an amenable number.

113388197 is a deficient number, since it is larger than the sum of its proper divisors (8722183).

113388197 is an equidigital number, since it uses as much as digits as its factorization.

113388197 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8722182.

The product of its digits is 36288, while the sum is 41.

The square root of 113388197 is about 10648.3894087322. The cubic root of 113388197 is about 484.0118001927.

The spelling of 113388197 in words is "one hundred thirteen million, three hundred eighty-eight thousand, one hundred ninety-seven".