9245319221 has 2 divisors, whose sum is σ = 9245319222. Its totient is φ = 9245319220.

The previous prime is 9245319179. The next prime is 9245319227. The reversal of 9245319221 is 1229135429.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8326562500 + 918756721 = 91250^2 + 30311^2 .

It is a cyclic number.

It is not a de Polignac number, because 9245319221 - 2⁶ = 9245319157 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9245319227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4622659610 + 4622659611.

It is an arithmetic number, because the mean of its divisors is an integer number (4622659611).

Almost surely, 2^9245319221 is an apocalyptic number.

It is an amenable number.

9245319221 is a deficient number, since it is larger than the sum of its proper divisors (1).

9245319221 is an equidigital number, since it uses as much as digits as its factorization.

9245319221 is an evil number, because the sum of its binary digits is even.

The product of its digits is 38880, while the sum is 38.

The square root of 9245319221 is about 96152.5830178264. The cubic root of 9245319221 is about 2098.8140863495.

The spelling of 9245319221 in words is "nine billion, two hundred forty-five million, three hundred nineteen thousand, two hundred twenty-one".