121959359 has 2 divisors, whose sum is σ = 121959360. Its totient is φ = 121959358.

The previous prime is 121959353. The next prime is 121959373. The reversal of 121959359 is 953959121.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-121959359 is a prime.

It is a Chen prime.

It is equal to p_6946829 and since 121959359 and 6946829 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121959353) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60979679 + 60979680.

It is an arithmetic number, because the mean of its divisors is an integer number (60979680).

Almost surely, 2^121959359 is an apocalyptic number.

121959359 is a deficient number, since it is larger than the sum of its proper divisors (1).

121959359 is an equidigital number, since it uses as much as digits as its factorization.

121959359 is an evil number, because the sum of its binary digits is even.

The product of its digits is 109350, while the sum is 44.

The square root of 121959359 is about 11043.5211323201. The cubic root of 121959359 is about 495.9124875414.

The spelling of 121959359 in words is "one hundred twenty-one million, nine hundred fifty-nine thousand, three hundred fifty-nine".