33540163 has 4 divisors (see below), whose sum is σ = 33552288. Its totient is φ = 33528040.

The previous prime is 33540139. The next prime is 33540193. The reversal of 33540163 is 36104533.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 36104533 = 1621 ⋅22273.

It is a cyclic number.

It is not a de Polignac number, because 33540163 - 2¹⁷ = 33409091 is a prime.

It is a super-2 number, since 2×33540163² = 2249885068133138, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (33540103) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 345 + ... + 8197.

It is an arithmetic number, because the mean of its divisors is an integer number (8388072).

Almost surely, 2^33540163 is an apocalyptic number.

33540163 is a deficient number, since it is larger than the sum of its proper divisors (12125).

33540163 is an equidigital number, since it uses as much as digits as its factorization.

33540163 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12124.

The product of its (nonzero) digits is 3240, while the sum is 25.

The square root of 33540163 is about 5791.3869668673. The cubic root of 33540163 is about 322.4940623469.

Adding to 33540163 its reverse (36104533), we get a palindrome (69644696).

The spelling of 33540163 in words is "thirty-three million, five hundred forty thousand, one hundred sixty-three".