1144400103 has 32 divisors (see below), whose sum is σ = 2113758720. Its totient is φ = 594492480.

The previous prime is 1144400093. The next prime is 1144400111. The reversal of 1144400103 is 3010044411.

It is not a de Polignac number, because 1144400103 - 2⁵ = 1144400071 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1144408103) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 273150 + ... + 277307.

It is an arithmetic number, because the mean of its divisors is an integer number (66054960).

Almost surely, 2^1144400103 is an apocalyptic number.

1144400103 is a deficient number, since it is larger than the sum of its proper divisors (969358617).

1144400103 is a wasteful number, since it uses less digits than its factorization.

1144400103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 550484 (or 550478 counting only the distinct ones).

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

The square root of 1144400103 is about 33828.9831801076. The cubic root of 1144400103 is about 1045.9862191346.

Adding to 1144400103 its reverse (3010044411), we get a palindrome (4154444514).

The spelling of 1144400103 in words is "one billion, one hundred forty-four million, four hundred thousand, one hundred three".