113001444 has 18 divisors (see below), whose sum is σ = 285642630. Its totient is φ = 37667136.

The previous prime is 113001443. The next prime is 113001457. The reversal of 113001444 is 444100311.

It can be written as a sum of positive squares in only one way, i.e., 65804544 + 47196900 = 8112^2 + 6870^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (113001443) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1569429 + ... + 1569500.

It is an arithmetic number, because the mean of its divisors is an integer number (15869035).

Almost surely, 2^113001444 is an apocalyptic number.

It is an amenable number.

113001444 is an abundant number, since it is smaller than the sum of its proper divisors (172641186).

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

113001444 is a wasteful number, since it uses less digits than its factorization.

113001444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3138939 (or 3138934 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 113001444 is about 10630.2137325644. The cubic root of 113001444 is about 483.4608720373.

Adding to 113001444 its reverse (444100311), we get a palindrome (557101755).

The spelling of 113001444 in words is "one hundred thirteen million, one thousand, four hundred forty-four".