133766947 has 2 divisors, whose sum is σ = 133766948. Its totient is φ = 133766946.

The previous prime is 133766933. The next prime is 133766957. The reversal of 133766947 is 749667331.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-133766947 is a prime.

It is a super-2 number, since 2×133766947² = 35787192219401618, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 133766897 and 133766906.

It is not a weakly prime, because it can be changed into another prime (133766957) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66883473 + 66883474.

It is an arithmetic number, because the mean of its divisors is an integer number (66883474).

Almost surely, 2^133766947 is an apocalyptic number.

133766947 is a deficient number, since it is larger than the sum of its proper divisors (1).

133766947 is an equidigital number, since it uses as much as digits as its factorization.

133766947 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 571536, while the sum is 46.

The square root of 133766947 is about 11565.7661657151. The cubic root of 133766947 is about 511.4261594071.

The spelling of 133766947 in words is "one hundred thirty-three million, seven hundred sixty-six thousand, nine hundred forty-seven".