140731574 has 4 divisors (see below), whose sum is σ = 211097364. Its totient is φ = 70365786.

The previous prime is 140731573. The next prime is 140731603. The reversal of 140731574 is 475137041.

140731574 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 475137041 = 71 ⋅6692071.

It is a self number, because there is not a number n which added to its sum of digits gives 140731574.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140731571) 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 as a sum of consecutive naturals, namely, 35182892 + ... + 35182895.

It is an arithmetic number, because the mean of its divisors is an integer number (52774341).

Almost surely, 2^140731574 is an apocalyptic number.

140731574 is a deficient number, since it is larger than the sum of its proper divisors (70365790).

140731574 is an equidigital number, since it uses as much as digits as its factorization.

140731574 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70365789.

The product of its (nonzero) digits is 11760, while the sum is 32.

The square root of 140731574 is about 11863.0339289745. The cubic root of 140731574 is about 520.1522902077.

The spelling of 140731574 in words is "one hundred forty million, seven hundred thirty-one thousand, five hundred seventy-four".