129510473 has 2 divisors, whose sum is σ = 129510474. Its totient is φ = 129510472.

The previous prime is 129510457. The next prime is 129510497. The reversal of 129510473 is 374015921.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 105431824 + 24078649 = 10268^2 + 4907^2 .

It is an emirp because it is prime and its reverse (374015921) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 129510473 - 2⁴ = 129510457 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (129510373) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64755236 + 64755237.

It is an arithmetic number, because the mean of its divisors is an integer number (64755237).

Almost surely, 2^129510473 is an apocalyptic number.

It is an amenable number.

129510473 is a deficient number, since it is larger than the sum of its proper divisors (1).

129510473 is an equidigital number, since it uses as much as digits as its factorization.

129510473 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7560, while the sum is 32.

The square root of 129510473 is about 11380.2668246399. The cubic root of 129510473 is about 505.9430445665.

The spelling of 129510473 in words is "one hundred twenty-nine million, five hundred ten thousand, four hundred seventy-three".