123298 has 8 divisors (see below), whose sum is σ = 211392. Its totient is φ = 52836.

The previous prime is 123289. The next prime is 123307. The reversal of 123298 is 892321.

It is an interprime number because it is at equal distance from previous prime (123289) and next prime (123307).

It is a sphenic number, since it is the product of 3 distinct primes.

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

It is an unprimeable number.

123298 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4390 + ... + 4417.

It is an arithmetic number, because the mean of its divisors is an integer number (26424).

2¹²³²⁹⁸ is an apocalyptic number.

123298 is a deficient number, since it is larger than the sum of its proper divisors (88094).

123298 is an equidigital number, since it uses as much as digits as its factorization.

123298 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8816.

The product of its digits is 864, while the sum is 25.

The square root of 123298 is about 351.1381494512. The cubic root of 123298 is about 49.7720288293.

The spelling of 123298 in words is "one hundred twenty-three thousand, two hundred ninety-eight".