129029113 has 4 divisors (see below), whose sum is σ = 129957520. Its totient is φ = 128100708.

The previous prime is 129029071. The next prime is 129029119. The reversal of 129029113 is 311920921.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 129029113 - 2²⁵ = 95474681 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (129029119) 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 3 ways as a sum of consecutive naturals, for example, 463995 + ... + 464272.

It is an arithmetic number, because the mean of its divisors is an integer number (32489380).

Almost surely, 2^129029113 is an apocalyptic number.

It is an amenable number.

129029113 is a deficient number, since it is larger than the sum of its proper divisors (928407).

129029113 is an equidigital number, since it uses as much as digits as its factorization.

129029113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 928406.

The product of its (nonzero) digits is 972, while the sum is 28.

The square root of 129029113 is about 11359.0982476603. The cubic root of 129029113 is about 505.3154425645.

It can be divided in two parts, 1290 and 29113, that added together give a palindrome (30403).

The spelling of 129029113 in words is "one hundred twenty-nine million, twenty-nine thousand, one hundred thirteen".