129467830 has 16 divisors (see below), whose sum is σ = 236993040. Its totient is φ = 50909152.

The previous prime is 129467827. The next prime is 129467839. The reversal of 129467830 is 38764921.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (129467839) 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 7 ways as a sum of consecutive naturals, for example, 109129 + ... + 110308.

It is an arithmetic number, because the mean of its divisors is an integer number (14812065).

Almost surely, 2^129467830 is an apocalyptic number.

129467830 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

129467830 is a deficient number, since it is larger than the sum of its proper divisors (107525210).

129467830 is a wasteful number, since it uses less digits than its factorization.

129467830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 219503.

The product of its (nonzero) digits is 72576, while the sum is 40.

The square root of 129467830 is about 11378.3931202960. The cubic root of 129467830 is about 505.8875090382.

The spelling of 129467830 in words is "one hundred twenty-nine million, four hundred sixty-seven thousand, eight hundred thirty".