134402171 has 2 divisors, whose sum is σ = 134402172. Its totient is φ = 134402170.

The previous prime is 134402159. The next prime is 134402173. The reversal of 134402171 is 171204431.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (171204431) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 134402171 - 2¹⁴ = 134385787 is a prime.

Together with 134402173, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (134402173) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67201085 + 67201086.

It is an arithmetic number, because the mean of its divisors is an integer number (67201086).

Almost surely, 2^134402171 is an apocalyptic number.

134402171 is a deficient number, since it is larger than the sum of its proper divisors (1).

134402171 is an equidigital number, since it uses as much as digits as its factorization.

134402171 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 672, while the sum is 23.

The square root of 134402171 is about 11593.1950298440. The cubic root of 134402171 is about 512.2344240529.

The spelling of 134402171 in words is "one hundred thirty-four million, four hundred two thousand, one hundred seventy-one".