33161636 has 6 divisors (see below), whose sum is σ = 58032870. Its totient is φ = 16580816.

The previous prime is 33161629. The next prime is 33161641. The reversal of 33161636 is 63616133.

It can be written as a sum of positive squares in only one way, i.e., 32993536 + 168100 = 5744^2 + 410^2 .

It is a junction number, because it is equal to n+sod(n) for n = 33161599 and 33161608.

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, 4145201 + ... + 4145208.

It is an arithmetic number, because the mean of its divisors is an integer number (9672145).

Almost surely, 2^33161636 is an apocalyptic number.

It is an amenable number.

33161636 is a deficient number, since it is larger than the sum of its proper divisors (24871234).

33161636 is a wasteful number, since it uses less digits than its factorization.

33161636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8290413 (or 8290411 counting only the distinct ones).

The product of its digits is 5832, while the sum is 29.

The square root of 33161636 is about 5758.6140693747. The cubic root of 33161636 is about 321.2762702151.

Adding to 33161636 its reverse (63616133), we get a palindrome (96777769).

The spelling of 33161636 in words is "thirty-three million, one hundred sixty-one thousand, six hundred thirty-six".