33145013533 has 4 divisors (see below), whose sum is σ = 33267320128. Its totient is φ = 33022706940.

The previous prime is 33145013527. The next prime is 33145013563. The reversal of 33145013533 is 33531054133.

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.

It is a cyclic number.

It is not a de Polignac number, because 33145013533 - 2³³ = 24555078941 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 33145013495 and 33145013504.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33145013563) 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, 61152891 + ... + 61153432.

It is an arithmetic number, because the mean of its divisors is an integer number (8316830032).

Almost surely, 2^33145013533 is an apocalyptic number.

It is an amenable number.

33145013533 is a deficient number, since it is larger than the sum of its proper divisors (122306595).

33145013533 is a wasteful number, since it uses less digits than its factorization.

33145013533 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122306594.

The product of its (nonzero) digits is 24300, while the sum is 31.

Adding to 33145013533 its reverse (33531054133), we get a palindrome (66676067666).

The spelling of 33145013533 in words is "thirty-three billion, one hundred forty-five million, thirteen thousand, five hundred thirty-three".