133117867 has 2 divisors, whose sum is σ = 133117868. Its totient is φ = 133117866.

The previous prime is 133117861. The next prime is 133117889. The reversal of 133117867 is 768711331.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 133117867 - 2⁷ = 133117739 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (133117861) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66558933 + 66558934.

It is an arithmetic number, because the mean of its divisors is an integer number (66558934).

Almost surely, 2^133117867 is an apocalyptic number.

133117867 is a deficient number, since it is larger than the sum of its proper divisors (1).

133117867 is an equidigital number, since it uses as much as digits as its factorization.

133117867 is an evil number, because the sum of its binary digits is even.

The product of its digits is 21168, while the sum is 37.

The square root of 133117867 is about 11537.6716455271. The cubic root of 133117867 is about 510.5976167545.

The spelling of 133117867 in words is "one hundred thirty-three million, one hundred seventeen thousand, eight hundred sixty-seven".