7225318453 has 2 divisors, whose sum is σ = 7225318454. Its totient is φ = 7225318452.

The previous prime is 7225318421. The next prime is 7225318481. The reversal of 7225318453 is 3548135227.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5541611364 + 1683707089 = 74442^2 + 41033^2 .

It is a cyclic number.

It is not a de Polignac number, because 7225318453 - 2⁵ = 7225318421 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7225318403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3612659226 + 3612659227.

It is an arithmetic number, because the mean of its divisors is an integer number (3612659227).

Almost surely, 2^7225318453 is an apocalyptic number.

It is an amenable number.

7225318453 is a deficient number, since it is larger than the sum of its proper divisors (1).

7225318453 is an equidigital number, since it uses as much as digits as its factorization.

7225318453 is an evil number, because the sum of its binary digits is even.

The product of its digits is 201600, while the sum is 40.

The square root of 7225318453 is about 85001.8732323000. The cubic root of 7225318453 is about 1933.2395192653.

The spelling of 7225318453 in words is "seven billion, two hundred twenty-five million, three hundred eighteen thousand, four hundred fifty-three".