2170451473 has 2 divisors, whose sum is σ = 2170451474. Its totient is φ = 2170451472.

The previous prime is 2170451461. The next prime is 2170451513. The reversal of 2170451473 is 3741540712.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2105616769 + 64834704 = 45887^2 + 8052^2 .

It is a cyclic number.

It is not a de Polignac number, because 2170451473 - 2⁵ = 2170451441 is a prime.

It is not a weakly prime, because it can be changed into another prime (2170451443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1085225736 + 1085225737.

It is an arithmetic number, because the mean of its divisors is an integer number (1085225737).

Almost surely, 2^2170451473 is an apocalyptic number.

It is an amenable number.

2170451473 is a deficient number, since it is larger than the sum of its proper divisors (1).

2170451473 is an equidigital number, since it uses as much as digits as its factorization.

2170451473 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 23520, while the sum is 34.

The square root of 2170451473 is about 46588.1044151831. The cubic root of 2170451473 is about 1294.7423692065.

The spelling of 2170451473 in words is "two billion, one hundred seventy million, four hundred fifty-one thousand, four hundred seventy-three".