121245398 has 8 divisors (see below), whose sum is σ = 181928592. Its totient is φ = 60602536.

The previous prime is 121245379. The next prime is 121245401. The reversal of 121245398 is 893542121.

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

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, 890 + ... + 15597.

It is an arithmetic number, because the mean of its divisors is an integer number (22741074).

Almost surely, 2^121245398 is an apocalyptic number.

121245398 is a deficient number, since it is larger than the sum of its proper divisors (60683194).

121245398 is a wasteful number, since it uses less digits than its factorization.

121245398 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20166.

The product of its digits is 17280, while the sum is 35.

The square root of 121245398 is about 11011.1488047342. The cubic root of 121245398 is about 494.9428876732.

The spelling of 121245398 in words is "one hundred twenty-one million, two hundred forty-five thousand, three hundred ninety-eight".