130566173 has 2 divisors, whose sum is σ = 130566174. Its totient is φ = 130566172.

The previous prime is 130566133. The next prime is 130566187. The reversal of 130566173 is 371665031.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 119530489 + 11035684 = 10933^2 + 3322^2 .

It is a cyclic number.

It is not a de Polignac number, because 130566173 - 2⁶ = 130566109 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (130566133) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65283086 + 65283087.

It is an arithmetic number, because the mean of its divisors is an integer number (65283087).

Almost surely, 2^130566173 is an apocalyptic number.

It is an amenable number.

130566173 is a deficient number, since it is larger than the sum of its proper divisors (1).

130566173 is an equidigital number, since it uses as much as digits as its factorization.

130566173 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11340, while the sum is 32.

The square root of 130566173 is about 11426.5556052557. Note that the first 3 decimals coincide. The cubic root of 130566173 is about 507.3140516078.

The spelling of 130566173 in words is "one hundred thirty million, five hundred sixty-six thousand, one hundred seventy-three".