898925161 has 2 divisors, whose sum is σ = 898925162. Its totient is φ = 898925160.

The previous prime is 898925143. The next prime is 898925171. The reversal of 898925161 is 161529898.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 885419536 + 13505625 = 29756^2 + 3675^2 .

It is a cyclic number.

It is not a de Polignac number, because 898925161 - 2¹⁹ = 898400873 is a prime.

It is not a weakly prime, because it can be changed into another prime (898925171) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 449462580 + 449462581.

It is an arithmetic number, because the mean of its divisors is an integer number (449462581).

Almost surely, 2^898925161 is an apocalyptic number.

It is an amenable number.

898925161 is a deficient number, since it is larger than the sum of its proper divisors (1).

898925161 is an equidigital number, since it uses as much as digits as its factorization.

898925161 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 311040, while the sum is 49.

The square root of 898925161 is about 29982.0806649572. The cubic root of 898925161 is about 965.1048812599.

The spelling of 898925161 in words is "eight hundred ninety-eight million, nine hundred twenty-five thousand, one hundred sixty-one".