1708845121 has 2 divisors, whose sum is σ = 1708845122. Its totient is φ = 1708845120.

The previous prime is 1708845107. The next prime is 1708845137. The reversal of 1708845121 is 1215488071.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1194462721 + 514382400 = 34561^2 + 22680^2 .

It is a cyclic number.

It is not a de Polignac number, because 1708845121 - 2¹⁵ = 1708812353 is a prime.

It is not a weakly prime, because it can be changed into another prime (1708845181) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 854422560 + 854422561.

It is an arithmetic number, because the mean of its divisors is an integer number (854422561).

Almost surely, 2^1708845121 is an apocalyptic number.

It is an amenable number.

1708845121 is a deficient number, since it is larger than the sum of its proper divisors (1).

1708845121 is an equidigital number, since it uses as much as digits as its factorization.

1708845121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 17920, while the sum is 37.

The square root of 1708845121 is about 41338.1799430018. The cubic root of 1708845121 is about 1195.5495149556.

The spelling of 1708845121 in words is "one billion, seven hundred eight million, eight hundred forty-five thousand, one hundred twenty-one".