121065173 has 2 divisors, whose sum is σ = 121065174. Its totient is φ = 121065172.

The previous prime is 121065121. The next prime is 121065179. The reversal of 121065173 is 371560121.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 85340644 + 35724529 = 9238^2 + 5977^2 .

It is a cyclic number.

It is not a de Polignac number, because 121065173 - 2⁸ = 121064917 is a prime.

It is a super-2 number, since 2×121065173² = 29313552227039858, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121065179) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60532586 + 60532587.

It is an arithmetic number, because the mean of its divisors is an integer number (60532587).

Almost surely, 2^121065173 is an apocalyptic number.

It is an amenable number.

121065173 is a deficient number, since it is larger than the sum of its proper divisors (1).

121065173 is an equidigital number, since it uses as much as digits as its factorization.

121065173 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1260, while the sum is 26.

The square root of 121065173 is about 11002.9620102952. The cubic root of 121065173 is about 494.6975304128.

The spelling of 121065173 in words is "one hundred twenty-one million, sixty-five thousand, one hundred seventy-three".