133123079 has 4 divisors (see below), whose sum is σ = 137713560. Its totient is φ = 128532600.

The previous prime is 133123061. The next prime is 133123093. The reversal of 133123079 is 970321331.

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 133123079 - 2⁸ = 133122823 is a prime.

It is a super-3 number, since 3×133123079³ (a number of 25 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (29), and also a Moran number because the ratio is a prime number: 4590451 = 133123079 / (1 + 3 + 3 + 1 + 2 + 3 + 0 + 7 + 9).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133123009) 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, 2295197 + ... + 2295254.

It is an arithmetic number, because the mean of its divisors is an integer number (34428390).

Almost surely, 2^133123079 is an apocalyptic number.

133123079 is a deficient number, since it is larger than the sum of its proper divisors (4590481).

133123079 is an equidigital number, since it uses as much as digits as its factorization.

133123079 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4590480.

The product of its (nonzero) digits is 3402, while the sum is 29.

The square root of 133123079 is about 11537.8975121120. The cubic root of 133123079 is about 510.6042805232.

The spelling of 133123079 in words is "one hundred thirty-three million, one hundred twenty-three thousand, seventy-nine".