129349803 has 16 divisors (see below), whose sum is σ = 188338176. Its totient is φ = 78313440.

The previous prime is 129349799. The next prime is 129349807. The reversal of 129349803 is 308943921.

It is an interprime number because it is at equal distance from previous prime (129349799) and next prime (129349807).

It is not a de Polignac number, because 129349803 - 2² = 129349799 is a prime.

It is a super-2 number, since 2×129349803² = 33462743072277618, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (129349807) 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 in 15 ways as a sum of consecutive naturals, for example, 53701 + ... + 56057.

It is an arithmetic number, because the mean of its divisors is an integer number (11771136).

Almost surely, 2^129349803 is an apocalyptic number.

129349803 is a deficient number, since it is larger than the sum of its proper divisors (58988373).

129349803 is a wasteful number, since it uses less digits than its factorization.

129349803 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4034.

The product of its (nonzero) digits is 46656, while the sum is 39.

The square root of 129349803 is about 11373.2054848226. The cubic root of 129349803 is about 505.7337345748.

The spelling of 129349803 in words is "one hundred twenty-nine million, three hundred forty-nine thousand, eight hundred three".