121973938 has 8 divisors (see below), whose sum is σ = 183227760. Its totient is φ = 60898020.

The previous prime is 121973897. The next prime is 121973959. The reversal of 121973938 is 839379121.

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

It is a junction number, because it is equal to n+sod(n) for n = 121973894 and 121973903.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42748 + ... + 45511.

It is an arithmetic number, because the mean of its divisors is an integer number (22903470).

Almost surely, 2^121973938 is an apocalyptic number.

121973938 is a deficient number, since it is larger than the sum of its proper divisors (61253822).

121973938 is an equidigital number, since it uses as much as digits as its factorization.

121973938 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88952.

The product of its digits is 81648, while the sum is 43.

The square root of 121973938 is about 11044.1811828673. The cubic root of 121973938 is about 495.9322471841.

It can be divided in two parts, 1219 and 73938, that added together give a palindrome (75157).

The spelling of 121973938 in words is "one hundred twenty-one million, nine hundred seventy-three thousand, nine hundred thirty-eight".