129480120 has 384 divisors, whose sum is σ = 547223040. Its totient is φ = 26749440.

The previous prime is 129480103. The next prime is 129480139. The reversal of 129480120 is 21084921.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 748354 + ... + 748526.

It is an arithmetic number, because the mean of its divisors is an integer number (1425060).

Almost surely, 2^129480120 is an apocalyptic number.

129480120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 129480120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (273611520).

129480120 is an abundant number, since it is smaller than the sum of its proper divisors (417742920).

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

129480120 is a wasteful number, since it uses less digits than its factorization.

129480120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 217 (or 201 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 27.

The square root of 129480120 is about 11378.9331661628. The cubic root of 129480120 is about 505.9035160024.

It can be divided in two parts, 129480 and 120, that added together give a square (129600 = 360²).

The spelling of 129480120 in words is "one hundred twenty-nine million, four hundred eighty thousand, one hundred twenty".