33131012 has 6 divisors (see below), whose sum is σ = 57979278. Its totient is φ = 16565504.

The previous prime is 33130997. The next prime is 33131023. The reversal of 33131012 is 21013133.

It can be written as a sum of positive squares in only one way, i.e., 27206656 + 5924356 = 5216^2 + 2434^2 .

It is a super-2 number, since 2×33131012² = 2195327912288288, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4141373 + ... + 4141380.

It is an arithmetic number, because the mean of its divisors is an integer number (9663213).

Almost surely, 2^33131012 is an apocalyptic number.

It is an amenable number.

33131012 is a deficient number, since it is larger than the sum of its proper divisors (24848266).

33131012 is a wasteful number, since it uses less digits than its factorization.

33131012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8282757 (or 8282755 counting only the distinct ones).

The product of its (nonzero) digits is 54, while the sum is 14.

The square root of 33131012 is about 5755.9544820994. The cubic root of 33131012 is about 321.1773427007.

Adding to 33131012 its reverse (21013133), we get a palindrome (54144145).

The spelling of 33131012 in words is "thirty-three million, one hundred thirty-one thousand, twelve".