134671247 has 2 divisors, whose sum is σ = 134671248. Its totient is φ = 134671246.

The previous prime is 134671241. The next prime is 134671249. The reversal of 134671247 is 742176431.

134671247 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 134671247 - 2¹⁸ = 134409103 is a prime.

Together with 134671249, 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 (134671241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67335623 + 67335624.

It is an arithmetic number, because the mean of its divisors is an integer number (67335624).

Almost surely, 2^134671247 is an apocalyptic number.

134671247 is a deficient number, since it is larger than the sum of its proper divisors (1).

134671247 is an equidigital number, since it uses as much as digits as its factorization.

134671247 is an evil number, because the sum of its binary digits is even.

The product of its digits is 28224, while the sum is 35.

The square root of 134671247 is about 11604.7941386308. The cubic root of 134671247 is about 512.5760309171.

The spelling of 134671247 in words is "one hundred thirty-four million, six hundred seventy-one thousand, two hundred forty-seven".