161298 has 32 divisors (see below), whose sum is σ = 374400. Its totient is φ = 51408.

The previous prime is 161281. The next prime is 161303. The reversal of 161298 is 892161.

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 odd and even.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1515 + ... + 1617.

It is an arithmetic number, because the mean of its divisors is an integer number (11700).

2¹⁶¹²⁹⁸ is an apocalyptic number.

161298 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 161298, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (187200).

161298 is an abundant number, since it is smaller than the sum of its proper divisors (213102).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

161298 is a wasteful number, since it uses less digits than its factorization.

161298 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143 (or 137 counting only the distinct ones).

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

The square root of 161298 is about 401.6192226475. The cubic root of 161298 is about 54.4347618797.

The spelling of 161298 in words is "one hundred sixty-one thousand, two hundred ninety-eight".