101603444 has 12 divisors (see below), whose sum is σ = 180242244. Its totient is φ = 50105664.

The previous prime is 101603417. The next prime is 101603449. The reversal of 101603444 is 444306101.

It can be written as a sum of positive squares in 2 ways, for example, as 21715600 + 79887844 = 4660^2 + 8938^2 .

It is a super-2 number, since 2×101603444² = 20646519665322272, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101603449) 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, 173687 + ... + 174270.

It is an arithmetic number, because the mean of its divisors is an integer number (15020187).

Almost surely, 2^101603444 is an apocalyptic number.

It is an amenable number.

101603444 is a deficient number, since it is larger than the sum of its proper divisors (78638800).

101603444 is a wasteful number, since it uses less digits than its factorization.

101603444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 348034 (or 348032 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 101603444 is about 10079.8533719494. The cubic root of 101603444 is about 466.6265831785.

Adding to 101603444 its reverse (444306101), we get a palindrome (545909545).

The spelling of 101603444 in words is "one hundred one million, six hundred three thousand, four hundred forty-four".