121983607 has 2 divisors, whose sum is σ = 121983608. Its totient is φ = 121983606.

The previous prime is 121983601. The next prime is 121983623. The reversal of 121983607 is 706389121.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 121983607 - 2⁷ = 121983479 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121983601) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60991803 + 60991804.

It is an arithmetic number, because the mean of its divisors is an integer number (60991804).

Almost surely, 2^121983607 is an apocalyptic number.

121983607 is a deficient number, since it is larger than the sum of its proper divisors (1).

121983607 is an equidigital number, since it uses as much as digits as its factorization.

121983607 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18144, while the sum is 37.

The square root of 121983607 is about 11044.6189160152. The cubic root of 121983607 is about 495.9453511916.

The spelling of 121983607 in words is "one hundred twenty-one million, nine hundred eighty-three thousand, six hundred seven".