140207425 has 12 divisors (see below), whose sum is σ = 181416960. Its totient is φ = 107288720.

The previous prime is 140207407. The next prime is 140207429. The reversal of 140207425 is 524702041.

It is not a de Polignac number, because 140207425 - 2¹⁷ = 140076353 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a self number, because there is not a number n which added to its sum of digits gives 140207425.

It is not an unprimeable number, because it can be changed into a prime (140207429) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 121345 + ... + 122494.

It is an arithmetic number, because the mean of its divisors is an integer number (15118080).

Almost surely, 2^140207425 is an apocalyptic number.

It is an amenable number.

140207425 is a deficient number, since it is larger than the sum of its proper divisors (41209535).

140207425 is a wasteful number, since it uses less digits than its factorization.

140207425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 243872 (or 243867 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 25.

The square root of 140207425 is about 11840.9216279815. The cubic root of 140207425 is about 519.5057248526.

Adding to 140207425 its reverse (524702041), we get a palindrome (664909466).

The spelling of 140207425 in words is "one hundred forty million, two hundred seven thousand, four hundred twenty-five".