226545637 has 2 divisors, whose sum is σ = 226545638. Its totient is φ = 226545636.

The previous prime is 226545619. The next prime is 226545647. The reversal of 226545637 is 736545622.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 181467841 + 45077796 = 13471^2 + 6714^2 .

It is a cyclic number.

It is not a de Polignac number, because 226545637 - 2²³ = 218157029 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 226545637.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (226545647) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 113272818 + 113272819.

It is an arithmetic number, because the mean of its divisors is an integer number (113272819).

Almost surely, 2^226545637 is an apocalyptic number.

It is an amenable number.

226545637 is a deficient number, since it is larger than the sum of its proper divisors (1).

226545637 is an equidigital number, since it uses as much as digits as its factorization.

226545637 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 302400, while the sum is 40.

The square root of 226545637 is about 15051.4330546962. The cubic root of 226545637 is about 609.6097450079.

The spelling of 226545637 in words is "two hundred twenty-six million, five hundred forty-five thousand, six hundred thirty-seven".