129398070 has 16 divisors (see below), whose sum is σ = 310555440. Its totient is φ = 34506144.

The previous prime is 129398047. The next prime is 129398083. The reversal of 129398070 is 70893921.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 2156605 + ... + 2156664.

It is an arithmetic number, because the mean of its divisors is an integer number (19409715).

Almost surely, 2^129398070 is an apocalyptic number.

129398070 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

129398070 is an abundant number, since it is smaller than the sum of its proper divisors (181157370).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

129398070 is a wasteful number, since it uses less digits than its factorization.

129398070 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4313279.

The product of its (nonzero) digits is 27216, while the sum is 39.

The square root of 129398070 is about 11375.3272480399. The cubic root of 129398070 is about 505.7966317575.

The spelling of 129398070 in words is "one hundred twenty-nine million, three hundred ninety-eight thousand, seventy".