213134227 has 2 divisors, whose sum is σ = 213134228. Its totient is φ = 213134226.

The previous prime is 213134189. The next prime is 213134239. The reversal of 213134227 is 722431312.

It is a happy number.

213134227 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 213134227 - 2⁷ = 213134099 is a prime.

It is not a weakly prime, because it can be changed into another prime (213134027) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106567113 + 106567114.

It is an arithmetic number, because the mean of its divisors is an integer number (106567114).

Almost surely, 2^213134227 is an apocalyptic number.

213134227 is a deficient number, since it is larger than the sum of its proper divisors (1).

213134227 is an equidigital number, since it uses as much as digits as its factorization.

213134227 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2016, while the sum is 25.

The square root of 213134227 is about 14599.1173363324. The cubic root of 213134227 is about 597.3346841656.

Adding to 213134227 its reverse (722431312), we get a palindrome (935565539).

The spelling of 213134227 in words is "two hundred thirteen million, one hundred thirty-four thousand, two hundred twenty-seven".