140383520 has 24 divisors (see below), whose sum is σ = 331656444. Its totient is φ = 56153344.

The previous prime is 140383517. The next prime is 140383589. The reversal of 140383520 is 25383041.

It can be written as a sum of positive squares in 2 ways, for example, as 132066064 + 8317456 = 11492^2 + 2884^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 140383520.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 438539 + ... + 438858.

Almost surely, 2^140383520 is an apocalyptic number.

140383520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

140383520 is an abundant number, since it is smaller than the sum of its proper divisors (191272924).

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

140383520 is an equidigital number, since it uses as much as digits as its factorization.

140383520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 877412 (or 877404 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 140383520 is about 11848.3551601056. The cubic root of 140383520 is about 519.7231267672.

The spelling of 140383520 in words is "one hundred forty million, three hundred eighty-three thousand, five hundred twenty".