225143152 has 60 divisors (see below), whose sum is σ = 481569624. Its totient is φ = 101886720.

The previous prime is 225143147. The next prime is 225143161. The reversal of 225143152 is 251341522.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 142527 + ... + 144097.

Almost surely, 2^225143152 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 225143152, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (240784812).

225143152 is an abundant number, since it is smaller than the sum of its proper divisors (256426472).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

225143152 is a wasteful number, since it uses less digits than its factorization.

225143152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1658 (or 1639 counting only the distinct ones).

The product of its digits is 2400, while the sum is 25.

The square root of 225143152 is about 15004.7709745934. The cubic root of 225143152 is about 608.3491617491.

Adding to 225143152 its reverse (251341522), we get a palindrome (476484674).

The spelling of 225143152 in words is "two hundred twenty-five million, one hundred forty-three thousand, one hundred fifty-two".