133412873 has 4 divisors (see below), whose sum is σ = 145541328. Its totient is φ = 121284420.

The previous prime is 133412863. The next prime is 133412921. The reversal of 133412873 is 378214331.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 378214331 = 11 ⋅34383121.

It is a cyclic number.

It is not a de Polignac number, because 133412873 - 2¹⁸ = 133150729 is a prime.

It is a super-2 number, since 2×133412873² = 35597989364228258, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (133412833) 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, 6064211 + ... + 6064232.

It is an arithmetic number, because the mean of its divisors is an integer number (36385332).

Almost surely, 2^133412873 is an apocalyptic number.

It is an amenable number.

133412873 is a deficient number, since it is larger than the sum of its proper divisors (12128455).

133412873 is a wasteful number, since it uses less digits than its factorization.

133412873 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12128454.

The product of its digits is 12096, while the sum is 32.

The square root of 133412873 is about 11550.4490388902. The cubic root of 133412873 is about 510.9745213967.

The spelling of 133412873 in words is "one hundred thirty-three million, four hundred twelve thousand, eight hundred seventy-three".