7229513 has 2 divisors, whose sum is σ = 7229514. Its totient is φ = 7229512.

The previous prime is 7229477. The next prime is 7229531. The reversal of 7229513 is 3159227.

7229513 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

Together with next prime (7229531) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6091024 + 1138489 = 2468^2 + 1067^2 .

It is an emirp because it is prime and its reverse (3159227) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 7229513 - 2⁶ = 7229449 is a prime.

It is not a weakly prime, because it can be changed into another prime (7229713) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3614756 + 3614757.

It is an arithmetic number, because the mean of its divisors is an integer number (3614757).

Almost surely, 2^7229513 is an apocalyptic number.

It is an amenable number.

7229513 is a deficient number, since it is larger than the sum of its proper divisors (1).

7229513 is an equidigital number, since it uses as much as digits as its factorization.

7229513 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3780, while the sum is 29.

The square root of 7229513 is about 2688.7753718003. The cubic root of 7229513 is about 193.3613551007.

The spelling of 7229513 in words is "seven million, two hundred twenty-nine thousand, five hundred thirteen".