225266142 has 16 divisors (see below), whose sum is σ = 466068240. Its totient is φ = 72499392.

The previous prime is 225266141. The next prime is 225266149. The reversal of 225266142 is 241662522.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225266141) 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 7 ways as a sum of consecutive naturals, for example, 647143 + ... + 647490.

It is an arithmetic number, because the mean of its divisors is an integer number (29129265).

Almost surely, 2^225266142 is an apocalyptic number.

225266142 is an abundant number, since it is smaller than the sum of its proper divisors (240802098).

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

225266142 is a wasteful number, since it uses less digits than its factorization.

225266142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1294667.

The product of its digits is 11520, while the sum is 30.

The square root of 225266142 is about 15008.8687781591. The cubic root of 225266142 is about 608.4599168289.

The spelling of 225266142 in words is "two hundred twenty-five million, two hundred sixty-six thousand, one hundred forty-two".