133028438719 has 4 divisors (see below), whose sum is σ = 145121933160. Its totient is φ = 120934944280.

The previous prime is 133028438717. The next prime is 133028438731. The reversal of 133028438719 is 917834820331.

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 133028438719 - 2¹ = 133028438717 is a prime.

It is a super-2 number, since 2×133028438719² (a number of 23 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133028438717) 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, 6046747204 + ... + 6046747225.

It is an arithmetic number, because the mean of its divisors is an integer number (36280483290).

Almost surely, 2^133028438719 is an apocalyptic number.

133028438719 is a deficient number, since it is larger than the sum of its proper divisors (12093494441).

133028438719 is a wasteful number, since it uses less digits than its factorization.

133028438719 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12093494440.

The product of its (nonzero) digits is 870912, while the sum is 49.

The spelling of 133028438719 in words is "one hundred thirty-three billion, twenty-eight million, four hundred thirty-eight thousand, seven hundred nineteen".