134564447 has 2 divisors, whose sum is σ = 134564448. Its totient is φ = 134564446.

The previous prime is 134564411. The next prime is 134564473. The reversal of 134564447 is 744465431.

It is a strong prime.

It is an emirp because it is prime and its reverse (744465431) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 134564447 - 2¹² = 134560351 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 134564447.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (134561447) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67282223 + 67282224.

It is an arithmetic number, because the mean of its divisors is an integer number (67282224).

Almost surely, 2^134564447 is an apocalyptic number.

134564447 is a deficient number, since it is larger than the sum of its proper divisors (1).

134564447 is an equidigital number, since it uses as much as digits as its factorization.

134564447 is an evil number, because the sum of its binary digits is even.

The product of its digits is 161280, while the sum is 38.

The square root of 134564447 is about 11600.1916794508. The cubic root of 134564447 is about 512.4404969188.

The spelling of 134564447 in words is "one hundred thirty-four million, five hundred sixty-four thousand, four hundred forty-seven".