133669747 has 2 divisors, whose sum is σ = 133669748. Its totient is φ = 133669746.

The previous prime is 133669687. The next prime is 133669771. The reversal of 133669747 is 747966331.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 133669747 - 2²³ = 125281139 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 133669697 and 133669706.

It is not a weakly prime, because it can be changed into another prime (133669777) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66834873 + 66834874.

It is an arithmetic number, because the mean of its divisors is an integer number (66834874).

Almost surely, 2^133669747 is an apocalyptic number.

133669747 is a deficient number, since it is larger than the sum of its proper divisors (1).

133669747 is an equidigital number, since it uses as much as digits as its factorization.

133669747 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 133669747 is about 11561.5633458456. The cubic root of 133669747 is about 511.3022556845.

The spelling of 133669747 in words is "one hundred thirty-three million, six hundred sixty-nine thousand, seven hundred forty-seven".