242137741 has 2 divisors, whose sum is σ = 242137742. Its totient is φ = 242137740.

The previous prime is 242137699. The next prime is 242137747. The reversal of 242137741 is 147731242.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 241802500 + 335241 = 15550^2 + 579^2 .

It is a cyclic number.

It is not a de Polignac number, because 242137741 - 2⁹ = 242137229 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (242137747) 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, 121068870 + 121068871.

It is an arithmetic number, because the mean of its divisors is an integer number (121068871).

Almost surely, 2^242137741 is an apocalyptic number.

It is an amenable number.

242137741 is a deficient number, since it is larger than the sum of its proper divisors (1).

242137741 is an equidigital number, since it uses as much as digits as its factorization.

242137741 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 9408, while the sum is 31.

The square root of 242137741 is about 15560.7757197384. The cubic root of 242137741 is about 623.2861771133.

Adding to 242137741 its reverse (147731242), we get a palindrome (389868983).

The spelling of 242137741 in words is "two hundred forty-two million, one hundred thirty-seven thousand, seven hundred forty-one".