33145013 has 8 divisors (see below), whose sum is σ = 36205920. Its totient is φ = 30092080.

The previous prime is 33145009. The next prime is 33145027. The reversal of 33145013 is 31054133.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 33145013 - 2² = 33145009 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33145213) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9731 + ... + 12687.

It is an arithmetic number, because the mean of its divisors is an integer number (4525740).

Almost surely, 2^33145013 is an apocalyptic number.

It is an amenable number.

33145013 is a deficient number, since it is larger than the sum of its proper divisors (3060907).

33145013 is a wasteful number, since it uses less digits than its factorization.

33145013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3987.

The product of its (nonzero) digits is 540, while the sum is 20.

The square root of 33145013 is about 5757.1705724253. The cubic root of 33145013 is about 321.2225789754. Note that the first 3 decimals are identical.

Adding to 33145013 its reverse (31054133), we get a palindrome (64199146).

The spelling of 33145013 in words is "thirty-three million, one hundred forty-five thousand, thirteen".