242025397 has 2 divisors, whose sum is σ = 242025398. Its totient is φ = 242025396.

The previous prime is 242025353. The next prime is 242025403. The reversal of 242025397 is 793520242.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 178249201 + 63776196 = 13351^2 + 7986^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-242025397 is a prime.

It is equal to p_13266583 and since 242025397 and 13266583 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (242025317) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121012698 + 121012699.

It is an arithmetic number, because the mean of its divisors is an integer number (121012699).

Almost surely, 2^242025397 is an apocalyptic number.

It is an amenable number.

242025397 is a deficient number, since it is larger than the sum of its proper divisors (1).

242025397 is an equidigital number, since it uses as much as digits as its factorization.

242025397 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 30240, while the sum is 34.

The square root of 242025397 is about 15557.1654551850. The cubic root of 242025397 is about 623.1897673947.

The spelling of 242025397 in words is "two hundred forty-two million, twenty-five thousand, three hundred ninety-seven".