129738675 has 24 divisors (see below), whose sum is σ = 234002880. Its totient is φ = 62903200.

The previous prime is 129738673. The next prime is 129738701. The reversal of 129738675 is 576837921.

It is not a de Polignac number, because 129738675 - 2¹ = 129738673 is a prime.

It is not an unprimeable number, because it can be changed into a prime (129738673) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 77805 + ... + 79454.

It is an arithmetic number, because the mean of its divisors is an integer number (9750120).

Almost surely, 2^129738675 is an apocalyptic number.

129738675 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

129738675 is a deficient number, since it is larger than the sum of its proper divisors (104264205).

129738675 is a wasteful number, since it uses less digits than its factorization.

129738675 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157283 (or 157278 counting only the distinct ones).

The product of its digits is 635040, while the sum is 48.

The square root of 129738675 is about 11390.2886267206. The cubic root of 129738675 is about 506.2400333353.

The spelling of 129738675 in words is "one hundred twenty-nine million, seven hundred thirty-eight thousand, six hundred seventy-five".