133566047 has 2 divisors, whose sum is σ = 133566048. Its totient is φ = 133566046.

The previous prime is 133565969. The next prime is 133566053. The reversal of 133566047 is 740665331.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 133566047 - 2⁸ = 133565791 is a prime.

It is a super-2 number, since 2×133566047² = 35679777822412418, which contains 22 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 133565998 and 133566016.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (133566077) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66783023 + 66783024.

It is an arithmetic number, because the mean of its divisors is an integer number (66783024).

Almost surely, 2^133566047 is an apocalyptic number.

133566047 is a deficient number, since it is larger than the sum of its proper divisors (1).

133566047 is an equidigital number, since it uses as much as digits as its factorization.

133566047 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 45360, while the sum is 35.

The square root of 133566047 is about 11557.0777880916. The cubic root of 133566047 is about 511.1699999763.

The spelling of 133566047 in words is "one hundred thirty-three million, five hundred sixty-six thousand, forty-seven".