33153132 has 12 divisors (see below), whose sum is σ = 77357336. Its totient is φ = 11051040.

The previous prime is 33153089. The next prime is 33153139. The reversal of 33153132 is 23135133.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×33153132² = 2198260322818848, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 33153099 and 33153108.

It is not an unprimeable number, because it can be changed into a prime (33153139) 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, 1381369 + ... + 1381392.

Almost surely, 2^33153132 is an apocalyptic number.

It is an amenable number.

33153132 is an abundant number, since it is smaller than the sum of its proper divisors (44204204).

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

33153132 is a wasteful number, since it uses less digits than its factorization.

33153132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2762768 (or 2762766 counting only the distinct ones).

The product of its digits is 810, while the sum is 21.

The square root of 33153132 is about 5757.8756499251. The cubic root of 33153132 is about 321.2488050746.

Adding to 33153132 its reverse (23135133), we get a palindrome (56288265).

The spelling of 33153132 in words is "thirty-three million, one hundred fifty-three thousand, one hundred thirty-two".