140231244 has 12 divisors (see below), whose sum is σ = 327206264. Its totient is φ = 46743744.

The previous prime is 140231243. The next prime is 140231257. The reversal of 140231244 is 442132041.

140231244 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (12).

It is a self number, because there is not a number n which added to its sum of digits gives 140231244.

It is not an unprimeable number, because it can be changed into a prime (140231243) 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, 5842957 + ... + 5842980.

Almost surely, 2^140231244 is an apocalyptic number.

It is an amenable number.

140231244 is an abundant number, since it is smaller than the sum of its proper divisors (186975020).

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

140231244 is a wasteful number, since it uses less digits than its factorization.

140231244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11685944 (or 11685942 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 140231244 is about 11841.9273769096. The cubic root of 140231244 is about 519.5351417592.

Adding to 140231244 its reverse (442132041), we get a palindrome (582363285).

The spelling of 140231244 in words is "one hundred forty million, two hundred thirty-one thousand, two hundred forty-four".