226238357 has 2 divisors, whose sum is σ = 226238358. Its totient is φ = 226238356.

The previous prime is 226238333. The next prime is 226238359. The reversal of 226238357 is 753832622.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 212168356 + 14070001 = 14566^2 + 3751^2 .

It is a cyclic number.

It is not a de Polignac number, because 226238357 - 2²⁰ = 225189781 is a prime.

Together with 226238359, it forms a pair of twin primes.

It is a Chen prime.

It is a pancake number, because a pancake can be divided into 226238357 parts by 21271 straight cuts.

It is a self number, because there is not a number n which added to its sum of digits gives 226238357.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (226238359) 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 as a sum of consecutive naturals, namely, 113119178 + 113119179.

It is an arithmetic number, because the mean of its divisors is an integer number (113119179).

Almost surely, 2^226238357 is an apocalyptic number.

It is an amenable number.

226238357 is a deficient number, since it is larger than the sum of its proper divisors (1).

226238357 is an equidigital number, since it uses as much as digits as its factorization.

226238357 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 120960, while the sum is 38.

The square root of 226238357 is about 15041.2219250964. The cubic root of 226238357 is about 609.3340012460.

The spelling of 226238357 in words is "two hundred twenty-six million, two hundred thirty-eight thousand, three hundred fifty-seven".