242203237 has 2 divisors, whose sum is σ = 242203238. Its totient is φ = 242203236.

The previous prime is 242203229. The next prime is 242203243. The reversal of 242203237 is 732302242.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 185667876 + 56535361 = 13626^2 + 7519^2 .

It is a cyclic number.

It is not a de Polignac number, because 242203237 - 2³ = 242203229 is a prime.

It is a super-3 number, since 3×242203237³ (a number of 26 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (242203207) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121101618 + 121101619.

It is an arithmetic number, because the mean of its divisors is an integer number (121101619).

Almost surely, 2^242203237 is an apocalyptic number.

It is an amenable number.

242203237 is a deficient number, since it is larger than the sum of its proper divisors (1).

242203237 is an equidigital number, since it uses as much as digits as its factorization.

242203237 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4032, while the sum is 25.

The square root of 242203237 is about 15562.8800997759. The cubic root of 242203237 is about 623.3423697458.

Adding to 242203237 its reverse (732302242), we get a palindrome (974505479).

The spelling of 242203237 in words is "two hundred forty-two million, two hundred three thousand, two hundred thirty-seven".