33213141 has 12 divisors (see below), whose sum is σ = 51665068. Its totient is φ = 20438784.

The previous prime is 33213137. The next prime is 33213151. The reversal of 33213141 is 14131233.

It can be written as a sum of positive squares in 2 ways, for example, as 11029041 + 22184100 = 3321^2 + 4710^2 .

It is not a de Polignac number, because 33213141 - 2² = 33213137 is a prime.

It is a super-2 number, since 2×33213141² = 2206225470171762, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33213151) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 141820 + ... + 142053.

Almost surely, 2^33213141 is an apocalyptic number.

It is an amenable number.

33213141 is a deficient number, since it is larger than the sum of its proper divisors (18451927).

33213141 is a wasteful number, since it uses less digits than its factorization.

33213141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 283892 (or 283889 counting only the distinct ones).

The product of its digits is 216, while the sum is 18.

The square root of 33213141 is about 5763.0843304606. The cubic root of 33213141 is about 321.4425142735.

Adding to 33213141 its reverse (14131233), we get a palindrome (47344374).

The spelling of 33213141 in words is "thirty-three million, two hundred thirteen thousand, one hundred forty-one".