242655401 has 2 divisors, whose sum is σ = 242655402. Its totient is φ = 242655400.

The previous prime is 242655389. The next prime is 242655421. The reversal of 242655401 is 104556242.

242655401 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., 155251600 + 87403801 = 12460^2 + 9349^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-242655401 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (242655421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121327700 + 121327701.

It is an arithmetic number, because the mean of its divisors is an integer number (121327701).

Almost surely, 2^242655401 is an apocalyptic number.

It is an amenable number.

242655401 is a deficient number, since it is larger than the sum of its proper divisors (1).

242655401 is an equidigital number, since it uses as much as digits as its factorization.

242655401 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9600, while the sum is 29.

The square root of 242655401 is about 15577.4003286813. The cubic root of 242655401 is about 623.7300300834.

The spelling of 242655401 in words is "two hundred forty-two million, six hundred fifty-five thousand, four hundred one".