213151271 has 2 divisors, whose sum is σ = 213151272. Its totient is φ = 213151270.

The previous prime is 213151249. The next prime is 213151273. The reversal of 213151271 is 172151312.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 213151271 - 2¹⁰ = 213150247 is a prime.

Together with 213151273, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (213151273) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106575635 + 106575636.

It is an arithmetic number, because the mean of its divisors is an integer number (106575636).

Almost surely, 2^213151271 is an apocalyptic number.

213151271 is a deficient number, since it is larger than the sum of its proper divisors (1).

213151271 is an equidigital number, since it uses as much as digits as its factorization.

213151271 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 420, while the sum is 23.

The square root of 213151271 is about 14599.7010585834. The cubic root of 213151271 is about 597.3506063713.

The spelling of 213151271 in words is "two hundred thirteen million, one hundred fifty-one thousand, two hundred seventy-one".