122998 has 8 divisors (see below), whose sum is σ = 186840. Its totient is φ = 60720.

The previous prime is 122971. The next prime is 123001. The reversal of 122998 is 899221.

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

It is a plaindrome in base 15.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 168 + ... + 523.

It is an arithmetic number, because the mean of its divisors is an integer number (23355).

2¹²²⁹⁹⁸ is an apocalyptic number.

122998 is a deficient number, since it is larger than the sum of its proper divisors (63842).

122998 is an equidigital number, since it uses as much as digits as its factorization.

122998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 782.

The product of its digits is 2592, while the sum is 31.

The square root of 122998 is about 350.7107069937. The cubic root of 122998 is about 49.7316287816.

The spelling of 122998 in words is "one hundred twenty-two thousand, nine hundred ninety-eight".