1298163 has 4 divisors (see below), whose sum is σ = 1730888. Its totient is φ = 865440.

The previous prime is 1298161. The next prime is 1298173. The reversal of 1298163 is 3618921.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3618921 = 3 ⋅1206307.

It is not a de Polignac number, because 1298163 - 2¹ = 1298161 is a prime.

It is an Ulam number.

It is a D-number.

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

It is a Duffinian number.

1298163 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 1298163.

It is not an unprimeable number, because it can be changed into a prime (1298161) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 216358 + ... + 216363.

It is an arithmetic number, because the mean of its divisors is an integer number (432722).

2^1298163 is an apocalyptic number.

1298163 is a deficient number, since it is larger than the sum of its proper divisors (432725).

1298163 is an equidigital number, since it uses as much as digits as its factorization.

1298163 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 432724.

The product of its digits is 2592, while the sum is 30.

The square root of 1298163 is about 1139.3695625213. The cubic root of 1298163 is about 109.0878566696.

The spelling of 1298163 in words is "one million, two hundred ninety-eight thousand, one hundred sixty-three".