9225312161 has 4 divisors (see below), whose sum is σ = 9934951572. Its totient is φ = 8515672752.

The previous prime is 9225312101. The next prime is 9225312163. The reversal of 9225312161 is 1612135229.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 954501025 + 8270811136 = 30895^2 + 90944^2 .

It is a cyclic number.

It is not a de Polignac number, because 9225312161 - 2⁶ = 9225312097 is a prime.

It is not an unprimeable number, because it can be changed into a prime (9225312163) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 354819686 + ... + 354819711.

It is an arithmetic number, because the mean of its divisors is an integer number (2483737893).

Almost surely, 2^9225312161 is an apocalyptic number.

It is an amenable number.

9225312161 is a deficient number, since it is larger than the sum of its proper divisors (709639411).

9225312161 is a wasteful number, since it uses less digits than its factorization.

9225312161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 709639410.

The product of its digits is 6480, while the sum is 32.

The square root of 9225312161 is about 96048.4885930018. The cubic root of 9225312161 is about 2097.2990340769.

The spelling of 9225312161 in words is "nine billion, two hundred twenty-five million, three hundred twelve thousand, one hundred sixty-one".