113143444 has 6 divisors (see below), whose sum is σ = 198001034. Its totient is φ = 56571720.

The previous prime is 113143441. The next prime is 113143451. The reversal of 113143444 is 444341311.

It can be written as a sum of positive squares in only one way, i.e., 111555844 + 1587600 = 10562^2 + 1260^2 .

It is a super-2 number, since 2×113143444² = 25602877840362272, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113143441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14142927 + ... + 14142934.

Almost surely, 2^113143444 is an apocalyptic number.

It is an amenable number.

113143444 is a deficient number, since it is larger than the sum of its proper divisors (84857590).

113143444 is a wasteful number, since it uses less digits than its factorization.

113143444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28285865 (or 28285863 counting only the distinct ones).

The product of its digits is 2304, while the sum is 25.

The square root of 113143444 is about 10636.8907111054. The cubic root of 113143444 is about 483.6632963166.

Adding to 113143444 its reverse (444341311), we get a palindrome (557484755).

The spelling of 113143444 in words is "one hundred thirteen million, one hundred forty-three thousand, four hundred forty-four".