133019519 has 2 divisors, whose sum is σ = 133019520. Its totient is φ = 133019518.

The previous prime is 133019507. The next prime is 133019521. The reversal of 133019519 is 915910331.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 133019519 - 2¹² = 133015423 is a prime.

It is a super-2 number, since 2×133019519² = 35388384869982722, which contains 22 as substring.

Together with 133019521, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (133019569) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66509759 + 66509760.

It is an arithmetic number, because the mean of its divisors is an integer number (66509760).

Almost surely, 2^133019519 is an apocalyptic number.

133019519 is a deficient number, since it is larger than the sum of its proper divisors (1).

133019519 is an equidigital number, since it uses as much as digits as its factorization.

133019519 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3645, while the sum is 32.

The square root of 133019519 is about 11533.4088195988. The cubic root of 133019519 is about 510.4718419373.

The spelling of 133019519 in words is "one hundred thirty-three million, nineteen thousand, five hundred nineteen".