134806291 has 2 divisors, whose sum is σ = 134806292. Its totient is φ = 134806290.

The previous prime is 134806267. The next prime is 134806313. The reversal of 134806291 is 192608431.

It is a strong prime.

It is an emirp because it is prime and its reverse (192608431) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 134806291 - 2²¹ = 132709139 is a prime.

It is not a weakly prime, because it can be changed into another prime (134806891) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67403145 + 67403146.

It is an arithmetic number, because the mean of its divisors is an integer number (67403146).

Almost surely, 2^134806291 is an apocalyptic number.

134806291 is a deficient number, since it is larger than the sum of its proper divisors (1).

134806291 is an equidigital number, since it uses as much as digits as its factorization.

134806291 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10368, while the sum is 34.

The square root of 134806291 is about 11610.6111380926. The cubic root of 134806291 is about 512.7473052726.

The spelling of 134806291 in words is "one hundred thirty-four million, eight hundred six thousand, two hundred ninety-one".