33533130145 has 8 divisors (see below), whose sum is σ = 40899424680. Its totient is φ = 26386725120.

The previous prime is 33533130047. The next prime is 33533130149. The reversal of 33533130145 is 54103133533.

It can be written as a sum of positive squares in 4 ways, for example, as 1712635456 + 31820494689 = 41384^2 + 178383^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 33533130145 - 2⁹ = 33533129633 is a prime.

It is a super-3 number, since 3×33533130145³ (a number of 33 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not an unprimeable number, because it can be changed into a prime (33533130149) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 54972040 + ... + 54972649.

It is an arithmetic number, because the mean of its divisors is an integer number (5112428085).

Almost surely, 2^33533130145 is an apocalyptic number.

It is an amenable number.

33533130145 is a deficient number, since it is larger than the sum of its proper divisors (7366294535).

33533130145 is a wasteful number, since it uses less digits than its factorization.

33533130145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109944755.

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

Adding to 33533130145 its reverse (54103133533), we get a palindrome (87636263678).

The spelling of 33533130145 in words is "thirty-three billion, five hundred thirty-three million, one hundred thirty thousand, one hundred forty-five".