33542141 has 4 divisors (see below), whose sum is σ = 34360284. Its totient is φ = 32724000.

The previous prime is 33542137. The next prime is 33542147. The reversal of 33542141 is 14124533.

33542141 is nontrivially palindromic in base 4.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 525625 + 33016516 = 725^2 + 5746^2 .

It is a cyclic number.

It is not a de Polignac number, because 33542141 - 2² = 33542137 is a prime.

It is a super-2 number, since 2×33542141² = 2250150445727762, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33542147) 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, 409010 + ... + 409091.

It is an arithmetic number, because the mean of its divisors is an integer number (8590071).

Almost surely, 2^33542141 is an apocalyptic number.

It is an amenable number.

33542141 is a deficient number, since it is larger than the sum of its proper divisors (818143).

33542141 is an equidigital number, since it uses as much as digits as its factorization.

33542141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 818142.

The product of its digits is 1440, while the sum is 23.

The square root of 33542141 is about 5791.5577351866. The cubic root of 33542141 is about 322.5004018183.

Adding to 33542141 its reverse (14124533), we get a palindrome (47666674).

The spelling of 33542141 in words is "thirty-three million, five hundred forty-two thousand, one hundred forty-one".