121894339 has 4 divisors (see below), whose sum is σ = 139307824. Its totient is φ = 104480856.

The previous prime is 121894309. The next prime is 121894397. The reversal of 121894339 is 933498121.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 121894339 - 2⁷ = 121894211 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121894309) 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, 8706732 + ... + 8706745.

It is an arithmetic number, because the mean of its divisors is an integer number (34826956).

Almost surely, 2^121894339 is an apocalyptic number.

121894339 is a deficient number, since it is larger than the sum of its proper divisors (17413485).

121894339 is an equidigital number, since it uses as much as digits as its factorization.

121894339 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17413484.

The product of its digits is 46656, while the sum is 40.

The square root of 121894339 is about 11040.5769323890. The cubic root of 121894339 is about 495.8243435290.

The spelling of 121894339 in words is "one hundred twenty-one million, eight hundred ninety-four thousand, three hundred thirty-nine".