898042247161 has 2 divisors, whose sum is σ = 898042247162. Its totient is φ = 898042247160.

The previous prime is 898042247147. The next prime is 898042247177. The reversal of 898042247161 is 161742240898.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 891589177600 + 6453069561 = 944240^2 + 80331^2 .

It is a cyclic number.

It is not a de Polignac number, because 898042247161 - 2¹⁹ = 898041722873 is a prime.

It is a super-2 number, since 2×898042247161² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 898042247099 and 898042247108.

It is not a weakly prime, because it can be changed into another prime (898042247761) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 449021123580 + 449021123581.

It is an arithmetic number, because the mean of its divisors is an integer number (449021123581).

Almost surely, 2^898042247161 is an apocalyptic number.

It is an amenable number.

898042247161 is a deficient number, since it is larger than the sum of its proper divisors (1).

898042247161 is an equidigital number, since it uses as much as digits as its factorization.

898042247161 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1548288, while the sum is 52.

The spelling of 898042247161 in words is "eight hundred ninety-eight billion, forty-two million, two hundred forty-seven thousand, one hundred sixty-one".