133309283 has 2 divisors, whose sum is σ = 133309284. Its totient is φ = 133309282.

The previous prime is 133309277. The next prime is 133309307. The reversal of 133309283 is 382903331.

It is a weak prime.

It is an emirp because it is prime and its reverse (382903331) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 133309283 - 2¹² = 133305187 is a prime.

It is a Chen prime.

It is equal to p_7555091 and since 133309283 and 7555091 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (133300283) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66654641 + 66654642.

It is an arithmetic number, because the mean of its divisors is an integer number (66654642).

Almost surely, 2^133309283 is an apocalyptic number.

133309283 is a deficient number, since it is larger than the sum of its proper divisors (1).

133309283 is an equidigital number, since it uses as much as digits as its factorization.

133309283 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11664, while the sum is 32.

The square root of 133309283 is about 11545.9639268447. The cubic root of 133309283 is about 510.8422364198.

The spelling of 133309283 in words is "one hundred thirty-three million, three hundred nine thousand, two hundred eighty-three".