121814117 has 2 divisors, whose sum is σ = 121814118. Its totient is φ = 121814116.

The previous prime is 121814093. The next prime is 121814137. The reversal of 121814117 is 711418121.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 120802081 + 1012036 = 10991^2 + 1006^2 .

It is a cyclic number.

It is not a de Polignac number, because 121814117 - 2¹⁰ = 121813093 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121814137) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60907058 + 60907059.

It is an arithmetic number, because the mean of its divisors is an integer number (60907059).

Almost surely, 2^121814117 is an apocalyptic number.

It is an amenable number.

121814117 is a deficient number, since it is larger than the sum of its proper divisors (1).

121814117 is an equidigital number, since it uses as much as digits as its factorization.

121814117 is an evil number, because the sum of its binary digits is even.

The product of its digits is 448, while the sum is 26.

The square root of 121814117 is about 11036.9432815431. The cubic root of 121814117 is about 495.7155478023.

The spelling of 121814117 in words is "one hundred twenty-one million, eight hundred fourteen thousand, one hundred seventeen".