225156442 has 8 divisors (see below), whose sum is σ = 385982496. Its totient is φ = 96495612.

The previous prime is 225156431. The next prime is 225156443. The reversal of 225156442 is 244651522.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (225156443) 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 3 ways as a sum of consecutive naturals, for example, 8041288 + ... + 8041315.

It is an arithmetic number, because the mean of its divisors is an integer number (48247812).

Almost surely, 2^225156442 is an apocalyptic number.

225156442 is a deficient number, since it is larger than the sum of its proper divisors (160826054).

225156442 is a wasteful number, since it uses less digits than its factorization.

225156442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16082612.

The product of its digits is 19200, while the sum is 31.

The square root of 225156442 is about 15005.2138272002. The cubic root of 225156442 is about 608.3611316169.

The spelling of 225156442 in words is "two hundred twenty-five million, one hundred fifty-six thousand, four hundred forty-two".