134666999 has 2 divisors, whose sum is σ = 134667000. Its totient is φ = 134666998.

The previous prime is 134666977. The next prime is 134667031. The reversal of 134666999 is 999666431.

It is a weak prime.

It is an emirp because it is prime and its reverse (999666431) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 134666999 - 2¹² = 134662903 is a prime.

It is a plaindrome in base 10.

It is a self number, because there is not a number n which added to its sum of digits gives 134666999.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (134666599) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67333499 + 67333500.

It is an arithmetic number, because the mean of its divisors is an integer number (67333500).

Almost surely, 2^134666999 is an apocalyptic number.

134666999 is a deficient number, since it is larger than the sum of its proper divisors (1).

134666999 is an equidigital number, since it uses as much as digits as its factorization.

134666999 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1889568, while the sum is 53.

The square root of 134666999 is about 11604.6111093823. The cubic root of 134666999 is about 512.5706413829.

The spelling of 134666999 in words is "one hundred thirty-four million, six hundred sixty-six thousand, nine hundred ninety-nine".