121398826 has 8 divisors (see below), whose sum is σ = 184403520. Its totient is φ = 59930988.

The previous prime is 121398817. The next prime is 121398839. The reversal of 121398826 is 628893121.

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

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, 384016 + ... + 384331.

It is an arithmetic number, because the mean of its divisors is an integer number (23050440).

Almost surely, 2^121398826 is an apocalyptic number.

121398826 is a deficient number, since it is larger than the sum of its proper divisors (63004694).

121398826 is an equidigital number, since it uses as much as digits as its factorization.

121398826 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 768428.

The product of its digits is 41472, while the sum is 40.

The square root of 121398826 is about 11018.1135408926. The cubic root of 121398826 is about 495.1515721252.

The spelling of 121398826 in words is "one hundred twenty-one million, three hundred ninety-eight thousand, eight hundred twenty-six".