33533142 has 8 divisors (see below), whose sum is σ = 67066296. Its totient is φ = 11177712.

The previous prime is 33533141. The next prime is 33533161. The reversal of 33533142 is 24133533.

It is a happy number.

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

33533142 is an admirable number.

It is a super-2 number, since 2×33533142² = 2248943224784328, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33533141) 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, 2794423 + ... + 2794434.

It is an arithmetic number, because the mean of its divisors is an integer number (8383287).

Almost surely, 2^33533142 is an apocalyptic number.

33533142 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

33533142 is a wasteful number, since it uses less digits than its factorization.

33533142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5588862.

The product of its digits is 3240, while the sum is 24.

The square root of 33533142 is about 5790.7807763720. The cubic root of 33533142 is about 322.4715580951.

Adding to 33533142 its reverse (24133533), we get a palindrome (57666675).

The spelling of 33533142 in words is "thirty-three million, five hundred thirty-three thousand, one hundred forty-two".