129042753 has 8 divisors (see below), whose sum is σ = 196636608. Its totient is φ = 73738704.

The previous prime is 129042731. The next prime is 129042763. The reversal of 129042753 is 357240921.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 129042753 - 2⁹ = 129042241 is a prime.

It is not an unprimeable number, because it can be changed into a prime (129042763) 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 in 7 ways as a sum of consecutive naturals, for example, 3072426 + ... + 3072467.

It is an arithmetic number, because the mean of its divisors is an integer number (24579576).

Almost surely, 2^129042753 is an apocalyptic number.

It is an amenable number.

129042753 is a deficient number, since it is larger than the sum of its proper divisors (67593855).

129042753 is an equidigital number, since it uses as much as digits as its factorization.

129042753 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6144903.

The product of its (nonzero) digits is 15120, while the sum is 33.

The square root of 129042753 is about 11359.6986315659. The cubic root of 129042753 is about 505.3332480029. Note that the first 3 decimals are identical.

It can be divided in two parts, 129042 and 753, that added together give a triangular number (129795 = T₅₀₉).

The spelling of 129042753 in words is "one hundred twenty-nine million, forty-two thousand, seven hundred fifty-three".