9204572161 has 2 divisors, whose sum is σ = 9204572162. Its totient is φ = 9204572160.

The previous prime is 9204572137. The next prime is 9204572197. The reversal of 9204572161 is 1612754029.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8557175025 + 647397136 = 92505^2 + 25444^2 .

It is a cyclic number.

It is not a de Polignac number, because 9204572161 - 2⁵ = 9204572129 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 9204572161.

It is not a weakly prime, because it can be changed into another prime (9204570161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4602286080 + 4602286081.

It is an arithmetic number, because the mean of its divisors is an integer number (4602286081).

Almost surely, 2^9204572161 is an apocalyptic number.

It is an amenable number.

9204572161 is a deficient number, since it is larger than the sum of its proper divisors (1).

9204572161 is an equidigital number, since it uses as much as digits as its factorization.

9204572161 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 30240, while the sum is 37.

The square root of 9204572161 is about 95940.4615425629. The cubic root of 9204572161 is about 2095.7261651837.

The spelling of 9204572161 in words is "nine billion, two hundred four million, five hundred seventy-two thousand, one hundred sixty-one".