133734019 has 4 divisors (see below), whose sum is σ = 141600744. Its totient is φ = 125867296.

The previous prime is 133734011. The next prime is 133734023. The reversal of 133734019 is 910437331.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 133734019 - 2³ = 133734011 is a prime.

It is a super-2 number, since 2×133734019² = 35769575675784722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (133734011) 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, 3933337 + ... + 3933370.

It is an arithmetic number, because the mean of its divisors is an integer number (35400186).

Almost surely, 2^133734019 is an apocalyptic number.

133734019 is a deficient number, since it is larger than the sum of its proper divisors (7866725).

133734019 is an equidigital number, since it uses as much as digits as its factorization.

133734019 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7866724.

The product of its (nonzero) digits is 6804, while the sum is 31.

The square root of 133734019 is about 11564.3425667005. The cubic root of 133734019 is about 511.3841918336.

The spelling of 133734019 in words is "one hundred thirty-three million, seven hundred thirty-four thousand, nineteen".