140431256 has 24 divisors (see below), whose sum is σ = 306298620. Its totient is φ = 60184656.

The previous prime is 140431219. The next prime is 140431259. The reversal of 140431256 is 652134041.

140431256 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140431259) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 178730 + ... + 179513.

Almost surely, 2^140431256 is an apocalyptic number.

It is an amenable number.

140431256 is an abundant number, since it is smaller than the sum of its proper divisors (165867364).

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

140431256 is a wasteful number, since it uses less digits than its factorization.

140431256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 358263 (or 358252 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 140431256 is about 11850.3694457177. The cubic root of 140431256 is about 519.7820289603.

Adding to 140431256 its reverse (652134041), we get a palindrome (792565297).

The spelling of 140431256 in words is "one hundred forty million, four hundred thirty-one thousand, two hundred fifty-six".