140001144 has 32 divisors (see below), whose sum is σ = 351139920. Its totient is φ = 46515456.

The previous prime is 140001133. The next prime is 140001187. The reversal of 140001144 is 441100041.

140001144 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1807 + ... + 16830.

Almost surely, 2^140001144 is an apocalyptic number.

It is an amenable number.

140001144 is an abundant number, since it is smaller than the sum of its proper divisors (211138776).

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

140001144 is a wasteful number, since it uses less digits than its factorization.

140001144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18959 (or 18955 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

The square root of 140001144 is about 11832.2079089238. The cubic root of 140001144 is about 519.2508245177.

Adding to 140001144 its reverse (441100041), we get a palindrome (581101185).

The spelling of 140001144 in words is "one hundred forty million, one thousand, one hundred forty-four".