1500129120 has 144 divisors (see below), whose sum is σ = 5496987888. Its totient is φ = 342881280.

The previous prime is 1500129101. The next prime is 1500129131. The reversal of 1500129120 is 219210051.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8371 + ... + 55410.

It is an arithmetic number, because the mean of its divisors is an integer number (38173527).

Almost surely, 2^1500129120 is an apocalyptic number.

1500129120 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 1500129120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2748493944).

1500129120 is an abundant number, since it is smaller than the sum of its proper divisors (3996858768).

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

1500129120 is a wasteful number, since it uses less digits than its factorization.

1500129120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63813 (or 63798 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 21.

The square root of 1500129120 is about 38731.5003582355. The cubic root of 1500129120 is about 1144.7470872783.

Adding to 1500129120 its reverse (219210051), we get a palindrome (1719339171).

The spelling of 1500129120 in words is "one billion, five hundred million, one hundred twenty-nine thousand, one hundred twenty".