33545138 has 16 divisors (see below), whose sum is σ = 55589760. Its totient is φ = 15054000.

The previous prime is 33545119. The next prime is 33545147. The reversal of 33545138 is 83154533.

It is a super-2 number, since 2×33545138² = 2250552566878088, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7913 + ... + 11388.

It is an arithmetic number, because the mean of its divisors is an integer number (3474360).

Almost surely, 2^33545138 is an apocalyptic number.

33545138 is a deficient number, since it is larger than the sum of its proper divisors (22044622).

33545138 is a wasteful number, since it uses less digits than its factorization.

33545138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19393.

The product of its digits is 21600, while the sum is 32.

The square root of 33545138 is about 5791.8164680867. The cubic root of 33545138 is about 322.5100067003.

The spelling of 33545138 in words is "thirty-three million, five hundred forty-five thousand, one hundred thirty-eight".