121694317 has 2 divisors, whose sum is σ = 121694318. Its totient is φ = 121694316.

The previous prime is 121694303. The next prime is 121694341. The reversal of 121694317 is 713496121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 120868036 + 826281 = 10994^2 + 909^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-121694317 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121694387) by changing a digit.

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 as a sum of consecutive naturals, namely, 60847158 + 60847159.

It is an arithmetic number, because the mean of its divisors is an integer number (60847159).

Almost surely, 2^121694317 is an apocalyptic number.

It is an amenable number.

121694317 is a deficient number, since it is larger than the sum of its proper divisors (1).

121694317 is an equidigital number, since it uses as much as digits as its factorization.

121694317 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 9072, while the sum is 34.

The square root of 121694317 is about 11031.5147192033. The cubic root of 121694317 is about 495.5529880952.

The spelling of 121694317 in words is "one hundred twenty-one million, six hundred ninety-four thousand, three hundred seventeen".