121983606 has 24 divisors (see below), whose sum is σ = 267485400. Its totient is φ = 40170816.

The previous prime is 121983601. The next prime is 121983607. The reversal of 121983606 is 606389121.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121983601) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 39331 + ... + 42318.

It is an arithmetic number, because the mean of its divisors is an integer number (11145225).

Almost surely, 2^121983606 is an apocalyptic number.

121983606 is an abundant number, since it is smaller than the sum of its proper divisors (145501794).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

121983606 is a wasteful number, since it uses less digits than its factorization.

121983606 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81740 (or 81737 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 36.

The square root of 121983606 is about 11044.6188707443. The cubic root of 121983606 is about 495.9453498364.

The spelling of 121983606 in words is "one hundred twenty-one million, nine hundred eighty-three thousand, six hundred six".