133127669 has 2 divisors, whose sum is σ = 133127670. Its totient is φ = 133127668.

The previous prime is 133127653. The next prime is 133127693. The reversal of 133127669 is 966721331.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 116424100 + 16703569 = 10790^2 + 4087^2 .

It is an emirp because it is prime and its reverse (966721331) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 133127669 - 2⁴ = 133127653 is a prime.

It is a super-2 number, since 2×133127669² = 35445952506747122, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (133124669) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66563834 + 66563835.

It is an arithmetic number, because the mean of its divisors is an integer number (66563835).

Almost surely, 2^133127669 is an apocalyptic number.

It is an amenable number.

133127669 is a deficient number, since it is larger than the sum of its proper divisors (1).

133127669 is an equidigital number, since it uses as much as digits as its factorization.

133127669 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 40824, while the sum is 38.

The square root of 133127669 is about 11538.0964201206. The cubic root of 133127669 is about 510.6101488939.

The spelling of 133127669 in words is "one hundred thirty-three million, one hundred twenty-seven thousand, six hundred sixty-nine".