225422143 has 4 divisors (see below), whose sum is σ = 227529000. Its totient is φ = 223315288.

The previous prime is 225422117. The next prime is 225422147. The reversal of 225422143 is 341224522.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-225422143 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225422147) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1053268 + ... + 1053481.

It is an arithmetic number, because the mean of its divisors is an integer number (56882250).

Almost surely, 2^225422143 is an apocalyptic number.

225422143 is a deficient number, since it is larger than the sum of its proper divisors (2106857).

225422143 is a wasteful number, since it uses less digits than its factorization.

225422143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2106856.

The product of its digits is 3840, while the sum is 25.

The square root of 225422143 is about 15014.0648393431. The cubic root of 225422143 is about 608.6003410277.

Adding to 225422143 its reverse (341224522), we get a palindrome (566646665).

The spelling of 225422143 in words is "two hundred twenty-five million, four hundred twenty-two thousand, one hundred forty-three".