140530144 has 24 divisors (see below), whose sum is σ = 284148648. Its totient is φ = 68365440.

The previous prime is 140530123. The next prime is 140530193. The reversal of 140530144 is 441035041.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 58162 + ... + 60529.

It is an arithmetic number, because the mean of its divisors is an integer number (11839527).

Almost surely, 2^140530144 is an apocalyptic number.

It is an amenable number.

140530144 is an abundant number, since it is smaller than the sum of its proper divisors (143618504).

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

140530144 is a wasteful number, since it uses less digits than its factorization.

140530144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118738 (or 118730 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 140530144 is about 11854.5410708302. The cubic root of 140530144 is about 519.9040059488.

Adding to 140530144 its reverse (441035041), we get a palindrome (581565185).

The spelling of 140530144 in words is "one hundred forty million, five hundred thirty thousand, one hundred forty-four".