140824520 has 16 divisors (see below), whose sum is σ = 316855260. Its totient is φ = 56329792.

The previous prime is 140824513. The next prime is 140824529. The reversal of 140824520 is 25428041.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 118940836 + 21883684 = 10906^2 + 4678^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 140824520.

It is not an unprimeable number, because it can be changed into a prime (140824529) 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 3 ways as a sum of consecutive naturals, for example, 1760267 + ... + 1760346.

Almost surely, 2^140824520 is an apocalyptic number.

140824520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

140824520 is an abundant number, since it is smaller than the sum of its proper divisors (176030740).

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

140824520 is a wasteful number, since it uses less digits than its factorization.

140824520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3520624 (or 3520620 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 26.

The square root of 140824520 is about 11866.9507456634. The cubic root of 140824520 is about 520.2667763270.

The spelling of 140824520 in words is "one hundred forty million, eight hundred twenty-four thousand, five hundred twenty".