121936394 has 8 divisors (see below), whose sum is σ = 185480928. Its totient is φ = 60109420.

The previous prime is 121936351. The next prime is 121936429. The reversal of 121936394 is 493639121.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 429212 + ... + 429495.

It is an arithmetic number, because the mean of its divisors is an integer number (23185116).

Almost surely, 2^121936394 is an apocalyptic number.

121936394 is a deficient number, since it is larger than the sum of its proper divisors (63544534).

121936394 is an equidigital number, since it uses as much as digits as its factorization.

121936394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 858780.

The product of its digits is 34992, while the sum is 38.

The square root of 121936394 is about 11042.4813334685. The cubic root of 121936394 is about 495.8813587422.

The spelling of 121936394 in words is "one hundred twenty-one million, nine hundred thirty-six thousand, three hundred ninety-four".