805260121 has 2 divisors, whose sum is σ = 805260122. Its totient is φ = 805260120.

The previous prime is 805260103. The next prime is 805260179. The reversal of 805260121 is 121062508.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 717650521 + 87609600 = 26789^2 + 9360^2 .

It is a cyclic number.

It is not a de Polignac number, because 805260121 - 2⁵ = 805260089 is a prime.

It is not a weakly prime, because it can be changed into another prime (805260191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 402630060 + 402630061.

It is an arithmetic number, because the mean of its divisors is an integer number (402630061).

Almost surely, 2^805260121 is an apocalyptic number.

It is an amenable number.

805260121 is a deficient number, since it is larger than the sum of its proper divisors (1).

805260121 is an equidigital number, since it uses as much as digits as its factorization.

805260121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 960, while the sum is 25.

The square root of 805260121 is about 28377.1055782650. The cubic root of 805260121 is about 930.3479335595.

The spelling of 805260121 in words is "eight hundred five million, two hundred sixty thousand, one hundred twenty-one".