33144013 has 16 divisors (see below), whose sum is σ = 40106880. Its totient is φ = 26784576.

The previous prime is 33144011. The next prime is 33144019. The reversal of 33144013 is 31044133.

It is not a de Polignac number, because 33144013 - 2¹ = 33144011 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 (33144011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6831 + ... + 10627.

It is an arithmetic number, because the mean of its divisors is an integer number (2506680).

Almost surely, 2^33144013 is an apocalyptic number.

It is an amenable number.

33144013 is a deficient number, since it is larger than the sum of its proper divisors (6962867).

33144013 is a wasteful number, since it uses less digits than its factorization.

33144013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3876.

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 33144013 is about 5757.0837235531. The cubic root of 33144013 is about 321.2193484662.

Adding to 33144013 its reverse (31044133), we get a palindrome (64188146).

It can be divided in two parts, 331 and 44013, that added together give a palindrome (44344).

The spelling of 33144013 in words is "thirty-three million, one hundred forty-four thousand, thirteen".