242021141 has 2 divisors, whose sum is σ = 242021142. Its totient is φ = 242021140.

The previous prime is 242021119. The next prime is 242021167. The reversal of 242021141 is 141120242.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 186459025 + 55562116 = 13655^2 + 7454^2 .

It is a cyclic number.

It is not a de Polignac number, because 242021141 - 2¹⁰ = 242020117 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (242021191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121010570 + 121010571.

It is an arithmetic number, because the mean of its divisors is an integer number (121010571).

Almost surely, 2^242021141 is an apocalyptic number.

It is an amenable number.

242021141 is a deficient number, since it is larger than the sum of its proper divisors (1).

242021141 is an equidigital number, since it uses as much as digits as its factorization.

242021141 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 128, while the sum is 17.

The square root of 242021141 is about 15557.0286687401. The cubic root of 242021141 is about 623.1861144568.

Adding to 242021141 its reverse (141120242), we get a palindrome (383141383).

The spelling of 242021141 in words is "two hundred forty-two million, twenty-one thousand, one hundred forty-one".