140743255 has 24 divisors (see below), whose sum is σ = 184888656. Its totient is φ = 102493440.

The previous prime is 140743243. The next prime is 140743271. The reversal of 140743255 is 552347041.

It is a de Polignac number, because none of the positive numbers 2^k-140743255 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 80824 + ... + 82546.

It is an arithmetic number, because the mean of its divisors is an integer number (7703694).

Almost surely, 2^140743255 is an apocalyptic number.

140743255 is a deficient number, since it is larger than the sum of its proper divisors (44145401).

140743255 is a wasteful number, since it uses less digits than its factorization.

140743255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1807 (or 1776 counting only the distinct ones).

The product of its (nonzero) digits is 16800, while the sum is 31.

The square root of 140743255 is about 11863.5262464412. The cubic root of 140743255 is about 520.1666810337.

The spelling of 140743255 in words is "one hundred forty million, seven hundred forty-three thousand, two hundred fifty-five".