133389719 has 4 divisors (see below), whose sum is σ = 139189296. Its totient is φ = 127590144.

The previous prime is 133389703. The next prime is 133389743. The reversal of 133389719 is 917983331.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 917983331 = 25931 ⋅35401.

It is a cyclic number.

It is not a de Polignac number, because 133389719 - 2⁴ = 133389703 is a prime.

It is a super-2 number, since 2×133389719² = 35585634269797922, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 133389719.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133382719) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2899754 + ... + 2899799.

It is an arithmetic number, because the mean of its divisors is an integer number (34797324).

Almost surely, 2^133389719 is an apocalyptic number.

133389719 is a deficient number, since it is larger than the sum of its proper divisors (5799577).

133389719 is an equidigital number, since it uses as much as digits as its factorization.

133389719 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5799576.

The product of its digits is 122472, while the sum is 44.

The square root of 133389719 is about 11549.4466967037. The cubic root of 133389719 is about 510.9449595603.

The spelling of 133389719 in words is "one hundred thirty-three million, three hundred eighty-nine thousand, seven hundred nineteen".