129089534 has 32 divisors (see below), whose sum is σ = 246654720. Its totient is φ = 49327488.

The previous prime is 129089507. The next prime is 129089537. The reversal of 129089534 is 435980921.

It is a junction number, because it is equal to n+sod(n) for n = 129089491 and 129089500.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (129089537) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9752 + ... + 18795.

It is an arithmetic number, because the mean of its divisors is an integer number (7707960).

Almost surely, 2^129089534 is an apocalyptic number.

129089534 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

129089534 is a deficient number, since it is larger than the sum of its proper divisors (117565186).

129089534 is a wasteful number, since it uses less digits than its factorization.

129089534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28592.

The product of its (nonzero) digits is 77760, while the sum is 41.

The square root of 129089534 is about 11361.7575224962. The cubic root of 129089534 is about 505.3943056447.

The spelling of 129089534 in words is "one hundred twenty-nine million, eighty-nine thousand, five hundred thirty-four".