120002500 has 60 divisors (see below), whose sum is σ = 273962304. Its totient is φ = 45892000.

The previous prime is 120002489. The next prime is 120002513. The reversal of 120002500 is 5200021.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 56457 + ... + 58543.

Almost surely, 2^120002500 is an apocalyptic number.

120002500 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 120002500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (136981152).

120002500 is an abundant number, since it is smaller than the sum of its proper divisors (153959804).

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

120002500 is a wasteful number, since it uses less digits than its factorization.

120002500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2134 (or 2117 counting only the distinct ones).

The product of its (nonzero) digits is 20, while the sum is 10.

The square root of 120002500 is about 10954.5652583752. The cubic root of 120002500 is about 493.2458401369.

Adding to 120002500 its reverse (5200021), we get a palindrome (125202521).

The spelling of 120002500 in words is "one hundred twenty million, two thousand, five hundred".