298161 has 14 divisors (see below), whose sum is σ = 448130. Its totient is φ = 198288.

The previous prime is 298159. The next prime is 298169. The reversal of 298161 is 161892.

It can be written as a sum of positive squares in only one way, i.e., 291600 + 6561 = 540^2 + 81^2 .

It is not a de Polignac number, because 298161 - 2¹ = 298159 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is a plaindrome in base 12.

It is not an unprimeable number, because it can be changed into a prime (298169) by changing a digit.

It is a polite number, since it can be written in 13 ways as a sum of consecutive naturals, for example, 525 + ... + 933.

2²⁹⁸¹⁶¹ is an apocalyptic number.

It is an amenable number.

298161 is a deficient number, since it is larger than the sum of its proper divisors (149969).

298161 is an frugal number, since it uses more digits than its factorization.

298161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 427 (or 412 counting only the distinct ones).

The product of its digits is 864, while the sum is 27.

The square root of 298161 is about 546.0412072362. The cubic root of 298161 is about 66.8062270839.

The spelling of 298161 in words is "two hundred ninety-eight thousand, one hundred sixty-one".