140245025 has 24 divisors (see below), whose sum is σ = 177321984. Its totient is φ = 110016000.

The previous prime is 140244991. The next prime is 140245057. The reversal of 140245025 is 520542041.

It is a happy number.

It is not a de Polignac number, because 140245025 - 2¹⁰ = 140244001 is a prime.

It is a Duffinian number.

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 23 ways as a sum of consecutive naturals, for example, 365984 + ... + 366366.

It is an arithmetic number, because the mean of its divisors is an integer number (7388416).

Almost surely, 2^140245025 is an apocalyptic number.

It is an amenable number.

140245025 is a deficient number, since it is larger than the sum of its proper divisors (37076959).

140245025 is a wasteful number, since it uses less digits than its factorization.

140245025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 641 (or 636 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 23.

The square root of 140245025 is about 11842.5092357996. The cubic root of 140245025 is about 519.5521600286.

Adding to 140245025 its reverse (520542041), we get a palindrome (660787066).

The spelling of 140245025 in words is "one hundred forty million, two hundred forty-five thousand, twenty-five".