33147474133 has 4 divisors (see below), whose sum is σ = 33168231820. Its totient is φ = 33126716448.

The previous prime is 33147474097. The next prime is 33147474137.

33147474133 is nontrivially palindromic in base 10.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 8955404689 + 24192069444 = 94633^2 + 155538^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-33147474133 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33147474137) 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, 10376448 + ... + 10379641.

It is an arithmetic number, because the mean of its divisors is an integer number (8292057955).

Almost surely, 2^33147474133 is an apocalyptic number.

It is an amenable number.

33147474133 is a deficient number, since it is larger than the sum of its proper divisors (20757687).

33147474133 is a wasteful number, since it uses less digits than its factorization.

33147474133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20757686.

The product of its digits is 254016, while the sum is 40.

The spelling of 33147474133 in words is "thirty-three billion, one hundred forty-seven million, four hundred seventy-four thousand, one hundred thirty-three".