225515141 has 4 divisors (see below), whose sum is σ = 225655884. Its totient is φ = 225374400.

The previous prime is 225515137. The next prime is 225515167. The reversal of 225515141 is 141515522.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 130530625 + 94984516 = 11425^2 + 9746^2 .

It is a cyclic number.

It is not a de Polignac number, because 225515141 - 2² = 225515137 is a prime.

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 225515141.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225512141) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 67940 + ... + 71181.

It is an arithmetic number, because the mean of its divisors is an integer number (56413971).

Almost surely, 2^225515141 is an apocalyptic number.

It is an amenable number.

225515141 is a deficient number, since it is larger than the sum of its proper divisors (140743).

225515141 is a wasteful number, since it uses less digits than its factorization.

225515141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140742.

The product of its digits is 2000, while the sum is 26.

The square root of 225515141 is about 15017.1615493741. The cubic root of 225515141 is about 608.6840222968.

The spelling of 225515141 in words is "two hundred twenty-five million, five hundred fifteen thousand, one hundred forty-one".