33126645 has 16 divisors (see below), whose sum is σ = 53127360. Its totient is φ = 17625984.

The previous prime is 33126637. The next prime is 33126649. The reversal of 33126645 is 54662133.

It is not a de Polignac number, because 33126645 - 2³ = 33126637 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33126649) 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, 4641 + ... + 9369.

It is an arithmetic number, because the mean of its divisors is an integer number (3320460).

Almost surely, 2^33126645 is an apocalyptic number.

It is an amenable number.

33126645 is a deficient number, since it is larger than the sum of its proper divisors (20000715).

33126645 is a wasteful number, since it uses less digits than its factorization.

33126645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5204.

The product of its digits is 12960, while the sum is 30.

The square root of 33126645 is about 5755.5751233044. The cubic root of 33126645 is about 321.1632306145.

Adding to 33126645 its reverse (54662133), we get a palindrome (87788778).

The spelling of 33126645 in words is "thirty-three million, one hundred twenty-six thousand, six hundred forty-five".