33142141 has 2 divisors, whose sum is σ = 33142142. Its totient is φ = 33142140.

The previous prime is 33142133. The next prime is 33142147. The reversal of 33142141 is 14124133.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 30846916 + 2295225 = 5554^2 + 1515^2 .

It is a cyclic number.

It is not a de Polignac number, because 33142141 - 2³ = 33142133 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (33142147) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16571070 + 16571071.

It is an arithmetic number, because the mean of its divisors is an integer number (16571071).

Almost surely, 2^33142141 is an apocalyptic number.

It is an amenable number.

33142141 is a deficient number, since it is larger than the sum of its proper divisors (1).

33142141 is an equidigital number, since it uses as much as digits as its factorization.

33142141 is an evil number, because the sum of its binary digits is even.

The product of its digits is 288, while the sum is 19.

The square root of 33142141 is about 5756.9211389422. The cubic root of 33142141 is about 321.2133007782.

Adding to 33142141 its reverse (14124133), we get a palindrome (47266274).

The spelling of 33142141 in words is "thirty-three million, one hundred forty-two thousand, one hundred forty-one".