113225143 has 4 divisors (see below), whose sum is σ = 116285320. Its totient is φ = 110164968.

The previous prime is 113225131. The next prime is 113225183. The reversal of 113225143 is 341522311.

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: 341522311 = 13 ⋅26270947.

It is a cyclic number.

It is not a de Polignac number, because 113225143 - 2⁵ = 113225111 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 (113225183) 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, 1530033 + ... + 1530106.

It is an arithmetic number, because the mean of its divisors is an integer number (29071330).

Almost surely, 2^113225143 is an apocalyptic number.

113225143 is a deficient number, since it is larger than the sum of its proper divisors (3060177).

113225143 is an equidigital number, since it uses as much as digits as its factorization.

113225143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3060176.

The product of its digits is 720, while the sum is 22.

The square root of 113225143 is about 10640.7303790670. The cubic root of 113225143 is about 483.7796833827.

Adding to 113225143 its reverse (341522311), we get a palindrome (454747454).

The spelling of 113225143 in words is "one hundred thirteen million, two hundred twenty-five thousand, one hundred forty-three".