242364137 has 2 divisors, whose sum is σ = 242364138. Its totient is φ = 242364136.

The previous prime is 242364113. The next prime is 242364139. The reversal of 242364137 is 731463242.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 225480256 + 16883881 = 15016^2 + 4109^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-242364137 is a prime.

Together with 242364139, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (242364139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121182068 + 121182069.

It is an arithmetic number, because the mean of its divisors is an integer number (121182069).

Almost surely, 2^242364137 is an apocalyptic number.

It is an amenable number.

242364137 is a deficient number, since it is larger than the sum of its proper divisors (1).

242364137 is an equidigital number, since it uses as much as digits as its factorization.

242364137 is an evil number, because the sum of its binary digits is even.

The product of its digits is 24192, while the sum is 32.

The square root of 242364137 is about 15568.0485931924. The cubic root of 242364137 is about 623.4803717358.

The spelling of 242364137 in words is "two hundred forty-two million, three hundred sixty-four thousand, one hundred thirty-seven".