133333019 has 2 divisors, whose sum is σ = 133333020. Its totient is φ = 133333018.

The previous prime is 133332977. The next prime is 133333027. The reversal of 133333019 is 910333331.

It is a strong prime.

It is an emirp because it is prime and its reverse (910333331) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-133333019 is a prime.

It is a super-2 number, since 2×133333019² = 35555387911308722, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (133333069) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66666509 + 66666510.

It is an arithmetic number, because the mean of its divisors is an integer number (66666510).

Almost surely, 2^133333019 is an apocalyptic number.

133333019 is a deficient number, since it is larger than the sum of its proper divisors (1).

133333019 is an equidigital number, since it uses as much as digits as its factorization.

133333019 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2187, while the sum is 26.

The square root of 133333019 is about 11546.9917727519. The cubic root of 133333019 is about 510.8725534677.

The spelling of 133333019 in words is "one hundred thirty-three million, three hundred thirty-three thousand, nineteen".