298532197161 has 45 divisors (see below), whose sum is σ = 490271329933. Its totient is φ = 180895821480.

The previous prime is 298532197147. The next prime is 298532197193. The reversal of 298532197161 is 161791235892.

It is a happy number.

The square root of 298532197161 is 546381.

It is a perfect power (a square), and thus also a powerful number.

298532197161 is a `hidden beast` number, since 2 + 9 + 8 + 532 + 1 + 97 + 16 + 1 = 666.

It is not a de Polignac number, because 298532197161 - 2²³ = 298523808553 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 298532197098 and 298532197107.

It is not an unprimeable number, because it can be changed into a prime (298532197111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 44 ways as a sum of consecutive naturals, for example, 54088960 + ... + 54094478.

Almost surely, 2^298532197161 is an apocalyptic number.

298532197161 is the 546381-st square number.

298532197161 is the 273191-st centered octagonal number.

It is an amenable number.

298532197161 is a deficient number, since it is larger than the sum of its proper divisors (191739132772).

298532197161 is an frugal number, since it uses more digits than its factorization.

298532197161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11072 (or 5533 counting only the distinct ones).

The product of its digits is 1632960, while the sum is 54.

The spelling of 298532197161 in words is "two hundred ninety-eight billion, five hundred thirty-two million, one hundred ninety-seven thousand, one hundred sixty-one".