242856293 has 2 divisors, whose sum is σ = 242856294. Its totient is φ = 242856292.

The previous prime is 242856283. The next prime is 242856301. The reversal of 242856293 is 392658242.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 224340484 + 18515809 = 14978^2 + 4303^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-242856293 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 242856293.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (242856223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121428146 + 121428147.

It is an arithmetic number, because the mean of its divisors is an integer number (121428147).

Almost surely, 2^242856293 is an apocalyptic number.

It is an amenable number.

242856293 is a deficient number, since it is larger than the sum of its proper divisors (1).

242856293 is an equidigital number, since it uses as much as digits as its factorization.

242856293 is an evil number, because the sum of its binary digits is even.

The product of its digits is 207360, while the sum is 41.

The square root of 242856293 is about 15583.8471822589. The cubic root of 242856293 is about 623.9021092400.

The spelling of 242856293 in words is "two hundred forty-two million, eight hundred fifty-six thousand, two hundred ninety-three".