140744331 has 32 divisors (see below), whose sum is σ = 256632320. Its totient is φ = 74237472.

The previous prime is 140744293. The next prime is 140744339. The reversal of 140744331 is 133447041.

It is not a de Polignac number, because 140744331 - 2¹³ = 140736139 is a prime.

It is a super-3 number, since 3×140744331³ (a number of 25 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 140744295 and 140744304.

It is not an unprimeable number, because it can be changed into a prime (140744339) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 26185 + ... + 31098.

It is an arithmetic number, because the mean of its divisors is an integer number (8019760).

Almost surely, 2^140744331 is an apocalyptic number.

140744331 is a deficient number, since it is larger than the sum of its proper divisors (115887989).

140744331 is a wasteful number, since it uses less digits than its factorization.

140744331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57312 (or 57306 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 27.

The square root of 140744331 is about 11863.5715954345. The cubic root of 140744331 is about 520.1680066104.

The spelling of 140744331 in words is "one hundred forty million, seven hundred forty-four thousand, three hundred thirty-one".