140808810025 has 81 divisors (see below), whose sum is σ = 198435350757. Its totient is φ = 99064680000.

The previous prime is 140808809951. The next prime is 140808810031. The reversal of 140808810025 is 520018808041.

It is a happy number.

The square root of 140808810025 is 375245.

It is a perfect power (a square), and thus also a powerful number.

140808810025 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 36293679081 + 104515130944 = 190509^2 + 323288^2 .

It is not a de Polignac number, because 140808810025 - 2³³ = 132218875433 is a prime.

It is a super-3 number, since 3×140808810025³ (a number of 34 digits) contains 333 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 80 ways as a sum of consecutive naturals, for example, 560991150 + ... + 560991400.

Almost surely, 2^140808810025 is an apocalyptic number.

140808810025 is the 375245-th square number.

140808810025 is the 187623-rd centered octagonal number.

It is an amenable number.

140808810025 is a deficient number, since it is larger than the sum of its proper divisors (57626540732).

140808810025 is an equidigital number, since it uses as much as digits as its factorization.

140808810025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 584 (or 292 counting only the distinct ones).

The product of its (nonzero) digits is 20480, while the sum is 37.

The spelling of 140808810025 in words is "one hundred forty billion, eight hundred eight million, eight hundred ten thousand, twenty-five".