242287013 has 2 divisors, whose sum is σ = 242287014. Its totient is φ = 242287012.

The previous prime is 242286997. The next prime is 242287027. The reversal of 242287013 is 310782242.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 239847169 + 2439844 = 15487^2 + 1562^2 .

It is a cyclic number.

It is not a de Polignac number, because 242287013 - 2⁴ = 242286997 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 (242287033) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121143506 + 121143507.

It is an arithmetic number, because the mean of its divisors is an integer number (121143507).

Almost surely, 2^242287013 is an apocalyptic number.

It is an amenable number.

242287013 is a deficient number, since it is larger than the sum of its proper divisors (1).

242287013 is an equidigital number, since it uses as much as digits as its factorization.

242287013 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5376, while the sum is 29.

The square root of 242287013 is about 15565.5713997270. The cubic root of 242287013 is about 623.4142310350.

The spelling of 242287013 in words is "two hundred forty-two million, two hundred eighty-seven thousand, thirteen".