140520524 has 24 divisors (see below), whose sum is σ = 263544288. Its totient is φ = 65387520.

The previous prime is 140520493. The next prime is 140520529. The reversal of 140520524 is 425025041.

It is a happy number.

140520524 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a self number, because there is not a number n which added to its sum of digits gives 140520524.

It is not an unprimeable number, because it can be changed into a prime (140520529) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17237 + ... + 24044.

It is an arithmetic number, because the mean of its divisors is an integer number (10981012).

Almost surely, 2^140520524 is an apocalyptic number.

It is an amenable number.

140520524 is a deficient number, since it is larger than the sum of its proper divisors (123023764).

140520524 is a wasteful number, since it uses less digits than its factorization.

140520524 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41345 (or 41343 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 23.

The square root of 140520524 is about 11854.1353122022. The cubic root of 140520524 is about 519.8921423241.

Adding to 140520524 its reverse (425025041), we get a palindrome (565545565).

The spelling of 140520524 in words is "one hundred forty million, five hundred twenty thousand, five hundred twenty-four".