225131430 has 16 divisors (see below), whose sum is σ = 540315504. Its totient is φ = 60035040.

The previous prime is 225131381. The next prime is 225131443. The reversal of 225131430 is 34131522.

225131430 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 225131397 and 225131406.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 3752161 + ... + 3752220.

It is an arithmetic number, because the mean of its divisors is an integer number (33769719).

Almost surely, 2^225131430 is an apocalyptic number.

225131430 is an abundant number, since it is smaller than the sum of its proper divisors (315184074).

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

225131430 is a wasteful number, since it uses less digits than its factorization.

225131430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7504391.

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 225131430 is about 15004.3803604148. The cubic root of 225131430 is about 608.3386037366.

Adding to 225131430 its reverse (34131522), we get a palindrome (259262952).

The spelling of 225131430 in words is "two hundred twenty-five million, one hundred thirty-one thousand, four hundred thirty".