140228525 has 6 divisors (see below), whose sum is σ = 173883402. Its totient is φ = 112182800.

The previous prime is 140228509. The next prime is 140228527. The reversal of 140228525 is 525822041.

It can be written as a sum of positive squares in 3 ways, for example, as 27741289 + 112487236 = 5267^2 + 10606^2 .

It is not a de Polignac number, because 140228525 - 2⁴ = 140228509 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140228527) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2804546 + ... + 2804595.

It is an arithmetic number, because the mean of its divisors is an integer number (28980567).

Almost surely, 2^140228525 is an apocalyptic number.

It is an amenable number.

140228525 is a deficient number, since it is larger than the sum of its proper divisors (33654877).

140228525 is an equidigital number, since it uses as much as digits as its factorization.

140228525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5609151 (or 5609146 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 29.

The square root of 140228525 is about 11841.8125724063. The cubic root of 140228525 is about 519.5317839122.

The spelling of 140228525 in words is "one hundred forty million, two hundred twenty-eight thousand, five hundred twenty-five".