129049603 has 2 divisors, whose sum is σ = 129049604. Its totient is φ = 129049602.

The previous prime is 129049553. The next prime is 129049607. The reversal of 129049603 is 306940921.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 129049603 - 2²¹ = 126952451 is a prime.

It is not a weakly prime, because it can be changed into another prime (129049607) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64524801 + 64524802.

It is an arithmetic number, because the mean of its divisors is an integer number (64524802).

Almost surely, 2^129049603 is an apocalyptic number.

129049603 is a deficient number, since it is larger than the sum of its proper divisors (1).

129049603 is an equidigital number, since it uses as much as digits as its factorization.

129049603 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11664, while the sum is 34.

The square root of 129049603 is about 11360.0001320423. Note that the first 3 decimals coincide. The cubic root of 129049603 is about 505.3421894104.

The spelling of 129049603 in words is "one hundred twenty-nine million, forty-nine thousand, six hundred three".