225126343171 has 4 divisors (see below), whose sum is σ = 234914445072. Its totient is φ = 215338241272.

The previous prime is 225126343163. The next prime is 225126343181. The reversal of 225126343171 is 171343621522.

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

It is a cyclic number.

It is not a de Polignac number, because 225126343171 - 2³ = 225126343163 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 225126343171.

It is not an unprimeable number, because it can be changed into a prime (225126343111) 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, 4894050916 + ... + 4894050961.

It is an arithmetic number, because the mean of its divisors is an integer number (58728611268).

Almost surely, 2^225126343171 is an apocalyptic number.

225126343171 is a deficient number, since it is larger than the sum of its proper divisors (9788101901).

225126343171 is an equidigital number, since it uses as much as digits as its factorization.

225126343171 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9788101900.

The product of its digits is 60480, while the sum is 37.

Adding to 225126343171 its reverse (171343621522), we get a palindrome (396469964693).

The spelling of 225126343171 in words is "two hundred twenty-five billion, one hundred twenty-six million, three hundred forty-three thousand, one hundred seventy-one".