7225039 has 2 divisors, whose sum is σ = 7225040. Its totient is φ = 7225038.

The previous prime is 7225037. The next prime is 7225063. The reversal of 7225039 is 9305227.

It is a weak prime.

It is an emirp because it is prime and its reverse (9305227) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 7225039 - 2¹ = 7225037 is a prime.

Together with 7225037, it forms a pair of twin primes.

7225039 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 7224998 and 7225016.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7225033) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3612519 + 3612520.

It is an arithmetic number, because the mean of its divisors is an integer number (3612520).

Almost surely, 2^7225039 is an apocalyptic number.

7225039 is a deficient number, since it is larger than the sum of its proper divisors (1).

7225039 is an equidigital number, since it uses as much as digits as its factorization.

7225039 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3780, while the sum is 28.

The square root of 7225039 is about 2687.9432657703. The cubic root of 7225039 is about 193.3214595033.

The spelling of 7225039 in words is "seven million, two hundred twenty-five thousand, thirty-nine".