845362121 has 2 divisors, whose sum is σ = 845362122. Its totient is φ = 845362120.

The previous prime is 845362073. The next prime is 845362127. The reversal of 845362121 is 121263548.

845362121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 773451721 + 71910400 = 27811^2 + 8480^2 .

It is a cyclic number.

It is not a de Polignac number, because 845362121 - 2⁶ = 845362057 is a prime.

It is not a weakly prime, because it can be changed into another prime (845362127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 422681060 + 422681061.

It is an arithmetic number, because the mean of its divisors is an integer number (422681061).

Almost surely, 2^845362121 is an apocalyptic number.

It is an amenable number.

845362121 is a deficient number, since it is larger than the sum of its proper divisors (1).

845362121 is an equidigital number, since it uses as much as digits as its factorization.

845362121 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 11520, while the sum is 32.

The square root of 845362121 is about 29075.1117108774. Note that the first 3 decimals coincide. The cubic root of 845362121 is about 945.5422253304.

The spelling of 845362121 in words is "eight hundred forty-five million, three hundred sixty-two thousand, one hundred twenty-one".