130920173 has 2 divisors, whose sum is σ = 130920174. Its totient is φ = 130920172.

The previous prime is 130920149. The next prime is 130920187. The reversal of 130920173 is 371029031.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 127283524 + 3636649 = 11282^2 + 1907^2 .

It is a cyclic number.

It is not a de Polignac number, because 130920173 - 2¹² = 130916077 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (130920103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65460086 + 65460087.

It is an arithmetic number, because the mean of its divisors is an integer number (65460087).

Almost surely, 2^130920173 is an apocalyptic number.

It is an amenable number.

130920173 is a deficient number, since it is larger than the sum of its proper divisors (1).

130920173 is an equidigital number, since it uses as much as digits as its factorization.

130920173 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1134, while the sum is 26.

The square root of 130920173 is about 11442.0353521565. The cubic root of 130920173 is about 507.7721261339.

The spelling of 130920173 in words is "one hundred thirty million, nine hundred twenty thousand, one hundred seventy-three".