129630503 has 2 divisors, whose sum is σ = 129630504. Its totient is φ = 129630502.

The previous prime is 129630439. The next prime is 129630517. The reversal of 129630503 is 305036921.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 129630503 - 2⁶ = 129630439 is a prime.

It is a Sophie Germain prime.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (129630583) 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, 64815251 + 64815252.

It is an arithmetic number, because the mean of its divisors is an integer number (64815252).

Almost surely, 2^129630503 is an apocalyptic number.

129630503 is a deficient number, since it is larger than the sum of its proper divisors (1).

129630503 is an equidigital number, since it uses as much as digits as its factorization.

129630503 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4860, while the sum is 29.

The square root of 129630503 is about 11385.5392055010. The cubic root of 129630503 is about 506.0992985768.

The spelling of 129630503 in words is "one hundred twenty-nine million, six hundred thirty thousand, five hundred three".