1242241417 has 2 divisors, whose sum is σ = 1242241418. Its totient is φ = 1242241416.

The previous prime is 1242241397. The next prime is 1242241447. The reversal of 1242241417 is 7141422421.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 965717776 + 276523641 = 31076^2 + 16629^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1242241417 is a prime.

It is a super-2 number, since 2×1242241417² = 3086327476220335778, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1242241447) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 621120708 + 621120709.

It is an arithmetic number, because the mean of its divisors is an integer number (621120709).

Almost surely, 2^1242241417 is an apocalyptic number.

It is an amenable number.

1242241417 is a deficient number, since it is larger than the sum of its proper divisors (1).

1242241417 is an equidigital number, since it uses as much as digits as its factorization.

1242241417 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3584, while the sum is 28.

The square root of 1242241417 is about 35245.4453369510. The cubic root of 1242241417 is about 1074.9840032233.

Adding to 1242241417 its reverse (7141422421), we get a palindrome (8383663838).

The spelling of 1242241417 in words is "one billion, two hundred forty-two million, two hundred forty-one thousand, four hundred seventeen".