7242130901 has 2 divisors, whose sum is σ = 7242130902. Its totient is φ = 7242130900.

The previous prime is 7242130891. The next prime is 7242130919. The reversal of 7242130901 is 1090312427.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4164766225 + 3077364676 = 64535^2 + 55474^2 .

It is an emirp because it is prime and its reverse (1090312427) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7242130901 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7242130201) 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, 3621065450 + 3621065451.

It is an arithmetic number, because the mean of its divisors is an integer number (3621065451).

Almost surely, 2^7242130901 is an apocalyptic number.

It is an amenable number.

7242130901 is a deficient number, since it is larger than the sum of its proper divisors (1).

7242130901 is an equidigital number, since it uses as much as digits as its factorization.

7242130901 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3024, while the sum is 29.

The square root of 7242130901 is about 85100.7103436863. The cubic root of 7242130901 is about 1934.7378297709.

The spelling of 7242130901 in words is "seven billion, two hundred forty-two million, one hundred thirty thousand, nine hundred one".