140000025 has 36 divisors (see below), whose sum is σ = 254438576. Its totient is φ = 67874400.

The previous prime is 139999991. The next prime is 140000041. The reversal of 140000025 is 520000041.

It is not a de Polignac number, because 140000025 - 2⁹ = 139999513 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 1362 + ... + 16788.

Almost surely, 2^140000025 is an apocalyptic number.

140000025 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

140000025 is a deficient number, since it is larger than the sum of its proper divisors (114438551).

140000025 is a wasteful number, since it uses less digits than its factorization.

140000025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15462 (or 15446 counting only the distinct ones).

The product of its (nonzero) digits is 40, while the sum is 12.

The square root of 140000025 is about 11832.1606226420. The cubic root of 140000025 is about 519.2494410928.

Adding to 140000025 its reverse (520000041), we get a palindrome (660000066).

The spelling of 140000025 in words is "one hundred forty million, twenty-five", and thus it is an aban number.