226561143 has 4 divisors (see below), whose sum is σ = 302081528. Its totient is φ = 151040760.

The previous prime is 226561141. The next prime is 226561157. The reversal of 226561143 is 341165622.

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

It is not a de Polignac number, because 226561143 - 2¹ = 226561141 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 226561143.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (226561141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37760188 + ... + 37760193.

It is an arithmetic number, because the mean of its divisors is an integer number (75520382).

Almost surely, 2^226561143 is an apocalyptic number.

226561143 is a deficient number, since it is larger than the sum of its proper divisors (75520385).

226561143 is an equidigital number, since it uses as much as digits as its factorization.

226561143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75520384.

The product of its digits is 8640, while the sum is 30.

The square root of 226561143 is about 15051.9481463364. The cubic root of 226561143 is about 609.6236530122.

The spelling of 226561143 in words is "two hundred twenty-six million, five hundred sixty-one thousand, one hundred forty-three".