242013997 has 2 divisors, whose sum is σ = 242013998. Its totient is φ = 242013996.

The previous prime is 242013977. The next prime is 242014009. The reversal of 242013997 is 799310242.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 236113956 + 5900041 = 15366^2 + 2429^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-242013997 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (242013917) 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, 121006998 + 121006999.

It is an arithmetic number, because the mean of its divisors is an integer number (121006999).

Almost surely, 2^242013997 is an apocalyptic number.

It is an amenable number.

242013997 is a deficient number, since it is larger than the sum of its proper divisors (1).

242013997 is an equidigital number, since it uses as much as digits as its factorization.

242013997 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 27216, while the sum is 37.

The square root of 242013997 is about 15556.7990602180. The cubic root of 242013997 is about 623.1799826434.

The spelling of 242013997 in words is "two hundred forty-two million, thirteen thousand, nine hundred ninety-seven".