113143044 has 96 divisors (see below), whose sum is σ = 311980032. Its totient is φ = 31248000.

The previous prime is 113143039. The next prime is 113143057. The reversal of 113143044 is 440341311.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a self number, because there is not a number n which added to its sum of digits gives 113143044.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 363649 + ... + 363959.

It is an arithmetic number, because the mean of its divisors is an integer number (3249792).

Almost surely, 2^113143044 is an apocalyptic number.

113143044 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 113143044, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (155990016).

113143044 is an abundant number, since it is smaller than the sum of its proper divisors (198836988).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

113143044 is a wasteful number, since it uses less digits than its factorization.

113143044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 457 (or 455 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 113143044 is about 10636.8719086017. The cubic root of 113143044 is about 483.6627263453.

Adding to 113143044 its reverse (440341311), we get a palindrome (553484355).

The spelling of 113143044 in words is "one hundred thirteen million, one hundred forty-three thousand, forty-four".