33361013 has 12 divisors (see below), whose sum is σ = 39858732. Its totient is φ = 27820800.

The previous prime is 33360997. The next prime is 33361037. The reversal of 33361013 is 31016333.

It can be written as a sum of positive squares in 2 ways, for example, as 23261329 + 10099684 = 4823^2 + 3178^2 .

It is not a de Polignac number, because 33361013 - 2⁴ = 33360997 is a prime.

It is a super-2 number, since 2×33361013² = 2225914376772338, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33363013) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7388 + ... + 11013.

It is an arithmetic number, because the mean of its divisors is an integer number (3321561).

Almost surely, 2^33361013 is an apocalyptic number.

It is an amenable number.

33361013 is a deficient number, since it is larger than the sum of its proper divisors (6497719).

33361013 is a wasteful number, since it uses less digits than its factorization.

33361013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18452 (or 18445 counting only the distinct ones).

The product of its (nonzero) digits is 486, while the sum is 20.

The square root of 33361013 is about 5775.8993239148. The cubic root of 33361013 is about 321.9188516369.

Adding to 33361013 its reverse (31016333), we get a palindrome (64377346).

The spelling of 33361013 in words is "thirty-three million, three hundred sixty-one thousand, thirteen".