133019 has 4 divisors (see below), whose sum is σ = 140040. Its totient is φ = 126000.

The previous prime is 133013. The next prime is 133033. The reversal of 133019 is 910331.

133019 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 910331 = 233 ⋅3907.

It is a cyclic number.

It is not a de Polignac number, because 133019 - 2⁸ = 132763 is a prime.

It is a super-2 number, since 2×133019² = 35388108722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 132988 and 133006.

It is not an unprimeable number, because it can be changed into a prime (133013) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3482 + ... + 3519.

It is an arithmetic number, because the mean of its divisors is an integer number (35010).

2¹³³⁰¹⁹ is an apocalyptic number.

133019 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

133019 is a deficient number, since it is larger than the sum of its proper divisors (7021).

133019 is an equidigital number, since it uses as much as digits as its factorization.

133019 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7020.

The product of its (nonzero) digits is 81, while the sum is 17.

The square root of 133019 is about 364.7176990496. The cubic root of 133019 is about 51.0471178037.

The spelling of 133019 in words is "one hundred thirty-three thousand, nineteen".