135222671 has 2 divisors, whose sum is σ = 135222672. Its totient is φ = 135222670.

The previous prime is 135222667. The next prime is 135222673. The reversal of 135222671 is 176222531.

It is a happy number.

135222671 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 135222671 - 2² = 135222667 is a prime.

Together with 135222673, 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 (135222673) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67611335 + 67611336.

It is an arithmetic number, because the mean of its divisors is an integer number (67611336).

Almost surely, 2^135222671 is an apocalyptic number.

135222671 is a deficient number, since it is larger than the sum of its proper divisors (1).

135222671 is an equidigital number, since it uses as much as digits as its factorization.

135222671 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5040, while the sum is 29.

The square root of 135222671 is about 11628.5283247709. The cubic root of 135222671 is about 513.2746750406.

The spelling of 135222671 in words is "one hundred thirty-five million, two hundred twenty-two thousand, six hundred seventy-one".