129619230 has 64 divisors (see below), whose sum is σ = 337236480. Its totient is φ = 31694976.

The previous prime is 129619229. The next prime is 129619289. The reversal of 129619230 is 32916921.

It is a super-2 number, since 2×129619230² = 33602289571585800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 129619191 and 129619200.

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 31 ways as a sum of consecutive naturals, for example, 62551 + ... + 64589.

It is an arithmetic number, because the mean of its divisors is an integer number (5269320).

Almost surely, 2^129619230 is an apocalyptic number.

129619230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 129619230, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (168618240).

129619230 is an abundant number, since it is smaller than the sum of its proper divisors (207617250).

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

129619230 is a wasteful number, since it uses less digits than its factorization.

129619230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2225.

The product of its (nonzero) digits is 5832, while the sum is 33.

The square root of 129619230 is about 11385.0441369368. The cubic root of 129619230 is about 506.0846275885.

The spelling of 129619230 in words is "one hundred twenty-nine million, six hundred nineteen thousand, two hundred thirty".