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121834201 is a prime number
BaseRepresentation
bin1110100001100…
…00101011011001
322111020211002211
413100300223121
5222142143301
620031155121
73006400516
oct720605331
9274224084
10121834201
1162854925
1234975aa1
131c319a58
141227630d
15aa69051
hex7430ad9

121834201 has 2 divisors, whose sum is σ = 121834202. Its totient is φ = 121834200.

The previous prime is 121834169. The next prime is 121834211. The reversal of 121834201 is 102438121.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 69705801 + 52128400 = 8349^2 + 7220^2 .

It is a cyclic number.

It is not a de Polignac number, because 121834201 - 25 = 121834169 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (121834211) 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, 60917100 + 60917101.

It is an arithmetic number, because the mean of its divisors is an integer number (60917101).

Almost surely, 2121834201 is an apocalyptic number.

It is an amenable number.

121834201 is a deficient number, since it is larger than the sum of its proper divisors (1).

121834201 is an equidigital number, since it uses as much as digits as its factorization.

121834201 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 384, while the sum is 22.

The square root of 121834201 is about 11037.8530974098. The cubic root of 121834201 is about 495.7427898664.

It can be divided in two parts, 12183 and 4201, that added together give a 14-th power (16384 = 214).

The spelling of 121834201 in words is "one hundred twenty-one million, eight hundred thirty-four thousand, two hundred one".