33660113 has 2 divisors, whose sum is σ = 33660114. Its totient is φ = 33660112.

The previous prime is 33660089. The next prime is 33660157. The reversal of 33660113 is 31106633.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 30780304 + 2879809 = 5548^2 + 1697^2 .

It is an emirp because it is prime and its reverse (31106633) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 33660113 - 2¹² = 33656017 is a prime.

It is a super-2 number, since 2×33660113² = 2266006414345538, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (33660163) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16830056 + 16830057.

It is an arithmetic number, because the mean of its divisors is an integer number (16830057).

Almost surely, 2^33660113 is an apocalyptic number.

It is an amenable number.

33660113 is a deficient number, since it is larger than the sum of its proper divisors (1).

33660113 is an equidigital number, since it uses as much as digits as its factorization.

33660113 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 972, while the sum is 23.

The square root of 33660113 is about 5801.7336202208. The cubic root of 33660113 is about 322.8780511373.

Adding to 33660113 its reverse (31106633), we get a palindrome (64766746).

The spelling of 33660113 in words is "thirty-three million, six hundred sixty thousand, one hundred thirteen".