133667701 has 2 divisors, whose sum is σ = 133667702. Its totient is φ = 133667700.

The previous prime is 133667689. The next prime is 133667707. The reversal of 133667701 is 107766331.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 132848676 + 819025 = 11526^2 + 905^2 .

It is a cyclic number.

It is not a de Polignac number, because 133667701 - 2⁵ = 133667669 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (133667707) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66833850 + 66833851.

It is an arithmetic number, because the mean of its divisors is an integer number (66833851).

Almost surely, 2^133667701 is an apocalyptic number.

It is an amenable number.

133667701 is a deficient number, since it is larger than the sum of its proper divisors (1).

133667701 is an equidigital number, since it uses as much as digits as its factorization.

133667701 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15876, while the sum is 34.

The square root of 133667701 is about 11561.4748626635. The cubic root of 133667701 is about 511.2996469423.

The spelling of 133667701 in words is "one hundred thirty-three million, six hundred sixty-seven thousand, seven hundred one".