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121259 is a prime number
BaseRepresentation
bin11101100110101011
320011100002
4131212223
512340014
62333215
71013345
oct354653
9204302
10121259
1183116
125a20b
1343268
1432295
1525dde
hex1d9ab

121259 has 2 divisors, whose sum is σ = 121260. Its totient is φ = 121258.

The previous prime is 121229. The next prime is 121267. The reversal of 121259 is 952121.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 121259 - 212 = 117163 is a prime.

It is a Sophie Germain prime.

It is a plaindrome in base 15.

It is a self number, because there is not a number n which added to its sum of digits gives 121259.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 121259.

It is not a weakly prime, because it can be changed into another prime (121229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60629 + 60630.

It is an arithmetic number, because the mean of its divisors is an integer number (60630).

2121259 is an apocalyptic number.

121259 is a deficient number, since it is larger than the sum of its proper divisors (1).

121259 is an equidigital number, since it uses as much as digits as its factorization.

121259 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 180, while the sum is 20.

The square root of 121259 is about 348.2226299367. Note that the first 3 decimals coincide. The cubic root of 121259 is about 49.4961395486.

The spelling of 121259 in words is "one hundred twenty-one thousand, two hundred fifty-nine".