140510225 has 18 divisors (see below), whose sum is σ = 183897270. Its totient is φ = 106485120.

The previous prime is 140510221. The next prime is 140510257. The reversal of 140510225 is 522015041.

It can be written as a sum of positive squares in 3 ways, for example, as 4857616 + 135652609 = 2204^2 + 11647^2 .

It is not a de Polignac number, because 140510225 - 2² = 140510221 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 140510197 and 140510206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140510221) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 1241 + ... + 16809.

It is an arithmetic number, because the mean of its divisors is an integer number (10216515).

Almost surely, 2^140510225 is an apocalyptic number.

It is an amenable number.

140510225 is a deficient number, since it is larger than the sum of its proper divisors (43387045).

140510225 is a wasteful number, since it uses less digits than its factorization.

140510225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15617 (or 15593 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 20.

The square root of 140510225 is about 11853.7008988754. The cubic root of 140510225 is about 519.8794407395.

Adding to 140510225 its reverse (522015041), we get a palindrome (662525266).

The spelling of 140510225 in words is "one hundred forty million, five hundred ten thousand, two hundred twenty-five".