33313012 has 6 divisors (see below), whose sum is σ = 58297778. Its totient is φ = 16656504.

The previous prime is 33312977. The next prime is 33313019. The reversal of 33313012 is 21031333.

It can be written as a sum of positive squares in only one way, i.e., 33131536 + 181476 = 5756^2 + 426^2 .

It is a super-2 number, since 2×33313012² = 2219513537024288, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33313019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4164123 + ... + 4164130.

Almost surely, 2^33313012 is an apocalyptic number.

It is an amenable number.

33313012 is a deficient number, since it is larger than the sum of its proper divisors (24984766).

33313012 is a wasteful number, since it uses less digits than its factorization.

33313012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8328257 (or 8328255 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 16.

The square root of 33313012 is about 5771.7425445008. The cubic root of 33313012 is about 321.7643814685.

Adding to 33313012 its reverse (21031333), we get a palindrome (54344345).

The spelling of 33313012 in words is "thirty-three million, three hundred thirteen thousand, twelve".