213434147 has 2 divisors, whose sum is σ = 213434148. Its totient is φ = 213434146.

The previous prime is 213434129. The next prime is 213434159. The reversal of 213434147 is 741434312.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 213434147 - 2¹⁶ = 213368611 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (213434197) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106717073 + 106717074.

It is an arithmetic number, because the mean of its divisors is an integer number (106717074).

Almost surely, 2^213434147 is an apocalyptic number.

213434147 is a deficient number, since it is larger than the sum of its proper divisors (1).

213434147 is an equidigital number, since it uses as much as digits as its factorization.

213434147 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8064, while the sum is 29.

The square root of 213434147 is about 14609.3855791406. The cubic root of 213434147 is about 597.6147403111.

Adding to 213434147 its reverse (741434312), we get a palindrome (954868459).

The spelling of 213434147 in words is "two hundred thirteen million, four hundred thirty-four thousand, one hundred forty-seven".