226225189 has 4 divisors (see below), whose sum is σ = 226520140. Its totient is φ = 225930240.

The previous prime is 226225187. The next prime is 226225247. The reversal of 226225189 is 981522622.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 981522622 = 2 ⋅490761311.

It can be written as a sum of positive squares in 2 ways, for example, as 149084100 + 77141089 = 12210^2 + 8783^2 .

It is a cyclic number.

It is not a de Polignac number, because 226225189 - 2¹ = 226225187 is a prime.

It is a super-2 number, since 2×226225189² = 102355672276171442, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (226225187) 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, 146322 + ... + 147859.

It is an arithmetic number, because the mean of its divisors is an integer number (56630035).

Almost surely, 2^226225189 is an apocalyptic number.

It is an amenable number.

226225189 is a deficient number, since it is larger than the sum of its proper divisors (294951).

226225189 is an equidigital number, since it uses as much as digits as its factorization.

226225189 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 294950.

The product of its digits is 34560, while the sum is 37.

The square root of 226225189 is about 15040.7841883327. The cubic root of 226225189 is about 609.3221791043.

The spelling of 226225189 in words is "two hundred twenty-six million, two hundred twenty-five thousand, one hundred eighty-nine".