33145572 has 24 divisors (see below), whose sum is σ = 79835392. Its totient is φ = 10692000.

The previous prime is 33145549. The next prime is 33145591. The reversal of 33145572 is 27554133.

It is a Smith number, since the sum of its digits (30) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44179 + ... + 44922.

Almost surely, 2^33145572 is an apocalyptic number.

It is an amenable number.

33145572 is an abundant number, since it is smaller than the sum of its proper divisors (46689820).

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

33145572 is a wasteful number, since it uses less digits than its factorization.

33145572 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89139 (or 89137 counting only the distinct ones).

The product of its digits is 12600, while the sum is 30.

The square root of 33145572 is about 5757.2191203740. The cubic root of 33145572 is about 321.2243848017.

The spelling of 33145572 in words is "thirty-three million, one hundred forty-five thousand, five hundred seventy-two".