242489573 has 2 divisors, whose sum is σ = 242489574. Its totient is φ = 242489572.

The previous prime is 242489557. The next prime is 242489593. The reversal of 242489573 is 375984242.

242489573 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 152201569 + 90288004 = 12337^2 + 9502^2 .

It is a cyclic number.

It is not a de Polignac number, because 242489573 - 2⁴ = 242489557 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (242489593) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121244786 + 121244787.

It is an arithmetic number, because the mean of its divisors is an integer number (121244787).

Almost surely, 2^242489573 is an apocalyptic number.

It is an amenable number.

242489573 is a deficient number, since it is larger than the sum of its proper divisors (1).

242489573 is an equidigital number, since it uses as much as digits as its factorization.

242489573 is an evil number, because the sum of its binary digits is even.

The product of its digits is 483840, while the sum is 44.

The square root of 242489573 is about 15572.0767080053. The cubic root of 242489573 is about 623.5879143185.

The spelling of 242489573 in words is "two hundred forty-two million, four hundred eighty-nine thousand, five hundred seventy-three".