140140825 has 12 divisors (see below), whose sum is σ = 189572688. Its totient is φ = 101920400.

The previous prime is 140140823. The next prime is 140140831. The reversal of 140140825 is 528041041.

It is not a de Polignac number, because 140140825 - 2¹ = 140140823 is a prime.

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

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 140140825.

It is not an unprimeable number, because it can be changed into a prime (140140823) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 254527 + ... + 255076.

It is an arithmetic number, because the mean of its divisors is an integer number (15797724).

Almost surely, 2^140140825 is an apocalyptic number.

It is an amenable number.

140140825 is a deficient number, since it is larger than the sum of its proper divisors (49431863).

140140825 is a wasteful number, since it uses less digits than its factorization.

140140825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 509624 (or 509619 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 25.

The square root of 140140825 is about 11838.1090128449. The cubic root of 140140825 is about 519.4234549323.

Adding to 140140825 its reverse (528041041), we get a palindrome (668181866).

The spelling of 140140825 in words is "one hundred forty million, one hundred forty thousand, eight hundred twenty-five".