242690941 has 2 divisors, whose sum is σ = 242690942. Its totient is φ = 242690940.

The previous prime is 242690927. The next prime is 242691019. The reversal of 242690941 is 149096242.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 163302841 + 79388100 = 12779^2 + 8910^2 .

It is a cyclic number.

It is not a de Polignac number, because 242690941 - 2⁹ = 242690429 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 242690941.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (242690911) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121345470 + 121345471.

It is an arithmetic number, because the mean of its divisors is an integer number (121345471).

Almost surely, 2^242690941 is an apocalyptic number.

It is an amenable number.

242690941 is a deficient number, since it is larger than the sum of its proper divisors (1).

242690941 is an equidigital number, since it uses as much as digits as its factorization.

242690941 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 31104, while the sum is 37.

The square root of 242690941 is about 15578.5410420873. The cubic root of 242690941 is about 623.7604796881.

The spelling of 242690941 in words is "two hundred forty-two million, six hundred ninety thousand, nine hundred forty-one".