140478025 has 12 divisors (see below), whose sum is σ = 174396700. Its totient is φ = 112250880.

The previous prime is 140478007. The next prime is 140478047. The reversal of 140478025 is 520874041.

It can be written as a sum of positive squares in 6 ways, for example, as 22733824 + 117744201 = 4768^2 + 10851^2 .

It is not a de Polignac number, because 140478025 - 2¹⁵ = 140445257 is a prime.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 22441 + ... + 28009.

Almost surely, 2^140478025 is an apocalyptic number.

It is an amenable number.

140478025 is a deficient number, since it is larger than the sum of its proper divisors (33918675).

140478025 is a wasteful number, since it uses less digits than its factorization.

140478025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6588 (or 6583 counting only the distinct ones).

The product of its (nonzero) digits is 8960, while the sum is 31.

The square root of 140478025 is about 11852.3425954534. The cubic root of 140478025 is about 519.8397250132.

The spelling of 140478025 in words is "one hundred forty million, four hundred seventy-eight thousand, twenty-five".