133874121478331 has 4 divisors (see below), whose sum is σ = 144172130822832. Its totient is φ = 123576112133832.

The previous prime is 133874121478309. The next prime is 133874121478397.

It is a happy number.

133874121478331 is nontrivially palindromic in base 10.

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 133874121478331 - 2¹⁰ = 133874121477307 is a prime.

It is a super-2 number, since 2×133874121478331² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (133874121472331) 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, 5149004672231 + ... + 5149004672256.

It is an arithmetic number, because the mean of its divisors is an integer number (36043032705708).

Almost surely, 2^{133874121478331} is an apocalyptic number.

133874121478331 is a deficient number, since it is larger than the sum of its proper divisors (10298009344501).

133874121478331 is a wasteful number, since it uses less digits than its factorization.

133874121478331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10298009344500.

The product of its digits is 8128512, while the sum is 56.

The spelling of 133874121478331 in words is "one hundred thirty-three trillion, eight hundred seventy-four billion, one hundred twenty-one million, four hundred seventy-eight thousand, three hundred thirty-one".