226542245 has 4 divisors (see below), whose sum is σ = 271850700. Its totient is φ = 181233792.

The previous prime is 226542223. The next prime is 226542247. The reversal of 226542245 is 542245622.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 542245622 = 2 ⋅271122811.

It can be written as a sum of positive squares in 2 ways, for example, as 33721249 + 192820996 = 5807^2 + 13886^2 .

It is a cyclic number.

It is not a de Polignac number, because 226542245 - 2⁶ = 226542181 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (226542247) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22654220 + ... + 22654229.

It is an arithmetic number, because the mean of its divisors is an integer number (67962675).

Almost surely, 2^226542245 is an apocalyptic number.

It is an amenable number.

226542245 is a deficient number, since it is larger than the sum of its proper divisors (45308455).

226542245 is an equidigital number, since it uses as much as digits as its factorization.

226542245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45308454.

The product of its digits is 38400, while the sum is 32.

The square root of 226542245 is about 15051.3203739738. The cubic root of 226542245 is about 609.6067024913.

Adding to 226542245 its reverse (542245622), we get a palindrome (768787867).

The spelling of 226542245 in words is "two hundred twenty-six million, five hundred forty-two thousand, two hundred forty-five".