140725280 has 24 divisors (see below), whose sum is σ = 332463852. Its totient is φ = 56290048.

The previous prime is 140725279. The next prime is 140725289. The reversal of 140725280 is 82527041.

It can be written as a sum of positive squares in 2 ways, for example, as 138203536 + 2521744 = 11756^2 + 1588^2 .

It is a super-3 number, since 3×140725280³ (a number of 25 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (140725289) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 439607 + ... + 439926.

Almost surely, 2^140725280 is an apocalyptic number.

140725280 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

140725280 is an abundant number, since it is smaller than the sum of its proper divisors (191738572).

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

140725280 is an equidigital number, since it uses as much as digits as its factorization.

140725280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 879548 (or 879540 counting only the distinct ones).

The product of its (nonzero) digits is 4480, while the sum is 29.

The square root of 140725280 is about 11862.7686481698. The cubic root of 140725280 is about 520.1445357590.

The spelling of 140725280 in words is "one hundred forty million, seven hundred twenty-five thousand, two hundred eighty".