242562643 has 2 divisors, whose sum is σ = 242562644. Its totient is φ = 242562642.

The previous prime is 242562611. The next prime is 242562659. The reversal of 242562643 is 346265242.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 242562643 - 2⁵ = 242562611 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 242562599 and 242562608.

It is not a weakly prime, because it can be changed into another prime (242562143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121281321 + 121281322.

It is an arithmetic number, because the mean of its divisors is an integer number (121281322).

Almost surely, 2^242562643 is an apocalyptic number.

242562643 is a deficient number, since it is larger than the sum of its proper divisors (1).

242562643 is an equidigital number, since it uses as much as digits as its factorization.

242562643 is an evil number, because the sum of its binary digits is even.

The product of its digits is 69120, while the sum is 34.

The square root of 242562643 is about 15574.4227180336. The cubic root of 242562643 is about 623.6505438058.

The spelling of 242562643 in words is "two hundred forty-two million, five hundred sixty-two thousand, six hundred forty-three".