7228643730149 has 2 divisors, whose sum is σ = 7228643730150. Its totient is φ = 7228643730148.

The previous prime is 7228643730137. The next prime is 7228643730169. The reversal of 7228643730149 is 9410373468227.

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., 6624153030049 + 604490700100 = 2573743^2 + 777490^2 .

It is a cyclic number.

It is not a de Polignac number, because 7228643730149 - 2¹² = 7228643726053 is a prime.

It is a super-3 number, since 3×7228643730149³ (a number of 40 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 7228643730094 and 7228643730103.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7228643730169) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3614321865074 + 3614321865075.

It is an arithmetic number, because the mean of its divisors is an integer number (3614321865075).

Almost surely, 2^{7228643730149} is an apocalyptic number.

It is an amenable number.

7228643730149 is a deficient number, since it is larger than the sum of its proper divisors (1).

7228643730149 is an equidigital number, since it uses as much as digits as its factorization.

7228643730149 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12192768, while the sum is 56.

The spelling of 7228643730149 in words is "seven trillion, two hundred twenty-eight billion, six hundred forty-three million, seven hundred thirty thousand, one hundred forty-nine".