7210529 has 2 divisors, whose sum is σ = 7210530. Its totient is φ = 7210528.

The previous prime is 7210471. The next prime is 7210537. The reversal of 7210529 is 9250127.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5414929 + 1795600 = 2327^2 + 1340^2 .

It is an emirp because it is prime and its reverse (9250127) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7210529 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is an alternating number because its digits alternate between odd and even.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 7210498 and 7210507.

It is not a weakly prime, because it can be changed into another prime (7210549) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3605264 + 3605265.

It is an arithmetic number, because the mean of its divisors is an integer number (3605265).

Almost surely, 2^7210529 is an apocalyptic number.

It is an amenable number.

7210529 is a deficient number, since it is larger than the sum of its proper divisors (1).

7210529 is an equidigital number, since it uses as much as digits as its factorization.

7210529 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1260, while the sum is 26.

The square root of 7210529 is about 2685.2428195603. The cubic root of 7210529 is about 193.1919573514.

Subtracting from 7210529 its sum of digits (26), we obtain a triangular number (7210503 = T₃₇₉₇).

It can be divided in two parts, 72 and 10529, that added together give a palindrome (10601).

The spelling of 7210529 in words is "seven million, two hundred ten thousand, five hundred twenty-nine".