129054327 has 16 divisors (see below), whose sum is σ = 191784960. Its totient is φ = 76712832.

The previous prime is 129054313. The next prime is 129054377. The reversal of 129054327 is 723450921.

It is not a de Polignac number, because 129054327 - 2⁷ = 129054199 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (129054377) 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, 65623 + ... + 67560.

It is an arithmetic number, because the mean of its divisors is an integer number (11986560).

Almost surely, 2^129054327 is an apocalyptic number.

129054327 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

129054327 is a deficient number, since it is larger than the sum of its proper divisors (62730633).

129054327 is a wasteful number, since it uses less digits than its factorization.

129054327 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133222.

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

The square root of 129054327 is about 11360.2080526723. The cubic root of 129054327 is about 505.3483555339.

The spelling of 129054327 in words is "one hundred twenty-nine million, fifty-four thousand, three hundred twenty-seven".