134666669 has 8 divisors (see below), whose sum is σ = 139091040. Its totient is φ = 130301136.

The previous prime is 134666663. The next prime is 134666687. The reversal of 134666669 is 966666431.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-134666669 is a prime.

It is a super-2 number, since 2×134666669² = 36270223479111122, which contains 22 as substring.

It is a Duffinian number.

It is a plaindrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (134666663) 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 in 7 ways as a sum of consecutive naturals, for example, 10034 + ... + 19235.

It is an arithmetic number, because the mean of its divisors is an integer number (17386380).

Almost surely, 2^134666669 is an apocalyptic number.

It is an amenable number.

134666669 is a deficient number, since it is larger than the sum of its proper divisors (4424371).

134666669 is a wasteful number, since it uses less digits than its factorization.

134666669 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29419.

The product of its digits is 839808, while the sum is 47.

The square root of 134666669 is about 11604.5968908877. The cubic root of 134666669 is about 512.5702226997.

The spelling of 134666669 in words is "one hundred thirty-four million, six hundred sixty-six thousand, six hundred sixty-nine".