33430541 has 2 divisors, whose sum is σ = 33430542. Its totient is φ = 33430540.

The previous prime is 33430511. The next prime is 33430543. The reversal of 33430541 is 14503433.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 33292900 + 137641 = 5770^2 + 371^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-33430541 is a prime.

It is a super-2 number, since 2×33430541² = 2235202143105362, which contains 22 as substring.

Together with 33430543, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (33430543) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16715270 + 16715271.

It is an arithmetic number, because the mean of its divisors is an integer number (16715271).

Almost surely, 2^33430541 is an apocalyptic number.

It is an amenable number.

33430541 is a deficient number, since it is larger than the sum of its proper divisors (1).

33430541 is an equidigital number, since it uses as much as digits as its factorization.

33430541 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2160, while the sum is 23.

The square root of 33430541 is about 5781.9149941866. The cubic root of 33430541 is about 322.1423344869.

Adding to 33430541 its reverse (14503433), we get a palindrome (47933974).

The spelling of 33430541 in words is "thirty-three million, four hundred thirty thousand, five hundred forty-one".