129148403 has 2 divisors, whose sum is σ = 129148404. Its totient is φ = 129148402.

The previous prime is 129148399. The next prime is 129148417. The reversal of 129148403 is 304841921.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 129148403 - 2² = 129148399 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 129148403.

It is not a weakly prime, because it can be changed into another prime (129148423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64574201 + 64574202.

It is an arithmetic number, because the mean of its divisors is an integer number (64574202).

Almost surely, 2^129148403 is an apocalyptic number.

129148403 is a deficient number, since it is larger than the sum of its proper divisors (1).

129148403 is an equidigital number, since it uses as much as digits as its factorization.

129148403 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6912, while the sum is 32.

The square root of 129148403 is about 11364.3478915422. The cubic root of 129148403 is about 505.4711193490.

It can be divided in two parts, 1291 and 48403, that added together give a palindrome (49694).

The spelling of 129148403 in words is "one hundred twenty-nine million, one hundred forty-eight thousand, four hundred three".