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121703161 is a prime number
BaseRepresentation
bin1110100000100…
…00101011111001
322111000011100111
413100100223321
5222124000121
620024304321
73005313466
oct720205371
9274004314
10121703161
1162775428
12349120a1
131c2a2208
141224066d
15aa402e1
hex7410af9

121703161 has 2 divisors, whose sum is σ = 121703162. Its totient is φ = 121703160.

The previous prime is 121703137. The next prime is 121703167. The reversal of 121703161 is 161307121.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 120560400 + 1142761 = 10980^2 + 1069^2 .

It is a cyclic number.

It is not a de Polignac number, because 121703161 - 27 = 121703033 is a prime.

It is a zygodrome in base 3.

It is not a weakly prime, because it can be changed into another prime (121703167) 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, 60851580 + 60851581.

It is an arithmetic number, because the mean of its divisors is an integer number (60851581).

Almost surely, 2121703161 is an apocalyptic number.

It is an amenable number.

121703161 is a deficient number, since it is larger than the sum of its proper divisors (1).

121703161 is an equidigital number, since it uses as much as digits as its factorization.

121703161 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 252, while the sum is 22.

The square root of 121703161 is about 11031.9155634912. The cubic root of 121703161 is about 495.5649923930.

The spelling of 121703161 in words is "one hundred twenty-one million, seven hundred three thousand, one hundred sixty-one".