121973426 has 16 divisors (see below), whose sum is σ = 194580960. Its totient is φ = 57179520.

The previous prime is 121973417. The next prime is 121973441. The reversal of 121973426 is 624379121.

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 7 ways as a sum of consecutive naturals, for example, 12860 + ... + 20231.

It is an arithmetic number, because the mean of its divisors is an integer number (12161310).

Almost surely, 2^121973426 is an apocalyptic number.

121973426 is a deficient number, since it is larger than the sum of its proper divisors (72607534).

121973426 is a wasteful number, since it uses less digits than its factorization.

121973426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33209.

The product of its digits is 18144, while the sum is 35.

The square root of 121973426 is about 11044.1580032160. The cubic root of 121973426 is about 495.9315532717.

The spelling of 121973426 in words is "one hundred twenty-one million, nine hundred seventy-three thousand, four hundred twenty-six".