242243201 has 2 divisors, whose sum is σ = 242243202. Its totient is φ = 242243200.

The previous prime is 242243191. The next prime is 242243249. The reversal of 242243201 is 102342242.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 241833601 + 409600 = 15551^2 + 640^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-242243201 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (242243101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121121600 + 121121601.

It is an arithmetic number, because the mean of its divisors is an integer number (121121601).

Almost surely, 2^242243201 is an apocalyptic number.

It is an amenable number.

242243201 is a deficient number, since it is larger than the sum of its proper divisors (1).

242243201 is an equidigital number, since it uses as much as digits as its factorization.

242243201 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 242243201 is about 15564.1639993930. The cubic root of 242243201 is about 623.3766520903.

Adding to 242243201 its reverse (102342242), we get a palindrome (344585443).

The spelling of 242243201 in words is "two hundred forty-two million, two hundred forty-three thousand, two hundred one".