242202137 has 2 divisors, whose sum is σ = 242202138. Its totient is φ = 242202136.

The previous prime is 242202109. The next prime is 242202143. The reversal of 242202137 is 731202242.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 188897536 + 53304601 = 13744^2 + 7301^2 .

It is a cyclic number.

It is not a de Polignac number, because 242202137 - 2²⁴ = 225424921 is a prime.

It is not a weakly prime, because it can be changed into another prime (242202637) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121101068 + 121101069.

It is an arithmetic number, because the mean of its divisors is an integer number (121101069).

Almost surely, 2^242202137 is an apocalyptic number.

It is an amenable number.

242202137 is a deficient number, since it is larger than the sum of its proper divisors (1).

242202137 is an equidigital number, since it uses as much as digits as its factorization.

242202137 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1344, while the sum is 23.

The square root of 242202137 is about 15562.8447592334. The cubic root of 242202137 is about 623.3414260788.

Adding to 242202137 its reverse (731202242), we get a palindrome (973404379).

The spelling of 242202137 in words is "two hundred forty-two million, two hundred two thousand, one hundred thirty-seven".