33145204 has 12 divisors (see below), whose sum is σ = 58955428. Its totient is φ = 16300800.

The previous prime is 33145201. The next prime is 33145207. The reversal of 33145204 is 40254133.

It is an interprime number because it is at equal distance from previous prime (33145201) and next prime (33145207).

It can be written as a sum of positive squares in 2 ways, for example, as 12460900 + 20684304 = 3530^2 + 4548^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33145201) 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, 67677 + ... + 68164.

Almost surely, 2^33145204 is an apocalyptic number.

It is an amenable number.

33145204 is a deficient number, since it is larger than the sum of its proper divisors (25810224).

33145204 is a wasteful number, since it uses less digits than its factorization.

33145204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135906 (or 135904 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 22.

The square root of 33145204 is about 5757.1871604109. The cubic root of 33145204 is about 321.2231959952.

Adding to 33145204 its reverse (40254133), we get a palindrome (73399337).

The spelling of 33145204 in words is "thirty-three million, one hundred forty-five thousand, two hundred four".