121617833 has 2 divisors, whose sum is σ = 121617834. Its totient is φ = 121617832.

The previous prime is 121617829. The next prime is 121617869. The reversal of 121617833 is 338716121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 121594729 + 23104 = 11027^2 + 152^2 .

It is an emirp because it is prime and its reverse (338716121) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 121617833 - 2² = 121617829 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 121617833.

It is not a weakly prime, because it can be changed into another prime (121619833) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60808916 + 60808917.

It is an arithmetic number, because the mean of its divisors is an integer number (60808917).

Almost surely, 2^121617833 is an apocalyptic number.

It is an amenable number.

121617833 is a deficient number, since it is larger than the sum of its proper divisors (1).

121617833 is an equidigital number, since it uses as much as digits as its factorization.

121617833 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6048, while the sum is 32.

The square root of 121617833 is about 11028.0475606519. The cubic root of 121617833 is about 495.4491491793.

The spelling of 121617833 in words is "one hundred twenty-one million, six hundred seventeen thousand, eight hundred thirty-three".