134666663 has 2 divisors, whose sum is σ = 134666664. Its totient is φ = 134666662.

The previous prime is 134666657. The next prime is 134666687. The reversal of 134666663 is 366666431.

It is a weak prime.

It is an emirp because it is prime and its reverse (366666431) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 134666663 - 2⁶ = 134666599 is a prime.

It is a super-2 number, since 2×134666663² = 36270220247111138, which contains 22 as substring.

It is equal to p_7627577 and since 134666663 and 7627577 have the same sum of digits, it is a Honaker prime.

It is a self number, because there is not a number n which added to its sum of digits gives 134666663.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (134666563) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67333331 + 67333332.

It is an arithmetic number, because the mean of its divisors is an integer number (67333332).

Almost surely, 2^134666663 is an apocalyptic number.

134666663 is a deficient number, since it is larger than the sum of its proper divisors (1).

134666663 is an equidigital number, since it uses as much as digits as its factorization.

134666663 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 279936, while the sum is 41.

The square root of 134666663 is about 11604.5966323694. The cubic root of 134666663 is about 512.5702150873.

The spelling of 134666663 in words is "one hundred thirty-four million, six hundred sixty-six thousand, six hundred sixty-three".