140044525 has 6 divisors (see below), whose sum is σ = 173655242. Its totient is φ = 112035600.

The previous prime is 140044523. The next prime is 140044543. The reversal of 140044525 is 525440041.

It is a happy number.

140044525 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 10949481 + 129095044 = 3309^2 + 11362^2 .

It is not a de Polignac number, because 140044525 - 2¹ = 140044523 is a prime.

It is a super-2 number, since 2×140044525² = 39224937964951250, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (25), and also a Moran number because the ratio is a prime number: 5601781 = 140044525 / (1 + 4 + 0 + 0 + 4 + 4 + 5 + 2 + 5).

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 140044525.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140044523) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2800866 + ... + 2800915.

Almost surely, 2^140044525 is an apocalyptic number.

It is an amenable number.

140044525 is a deficient number, since it is larger than the sum of its proper divisors (33610717).

140044525 is an equidigital number, since it uses as much as digits as its factorization.

140044525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5601791 (or 5601786 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 25.

The square root of 140044525 is about 11834.0409412846. The cubic root of 140044525 is about 519.3044509696.

Adding to 140044525 its reverse (525440041), we get a palindrome (665484566).

The spelling of 140044525 in words is "one hundred forty million, forty-four thousand, five hundred twenty-five".