1300002500 has 60 divisors (see below), whose sum is σ = 2853249168. Its totient is φ = 518100000.

The previous prime is 1300002493. The next prime is 1300002503. The reversal of 1300002500 is 52000031.

It is not an unprimeable number, because it can be changed into a prime (1300002503) 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 19 ways as a sum of consecutive naturals, for example, 826715 + ... + 828285.

Almost surely, 2^1300002500 is an apocalyptic number.

1300002500 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 1300002500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1426624584).

1300002500 is an abundant number, since it is smaller than the sum of its proper divisors (1553246668).

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

1300002500 is a wasteful number, since it uses less digits than its factorization.

1300002500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1926 (or 1909 counting only the distinct ones).

The product of its (nonzero) digits is 30, while the sum is 11.

The square root of 1300002500 is about 36055.5474233855. The cubic root of 1300002500 is about 1091.3935826715.

Adding to 1300002500 its reverse (52000031), we get a palindrome (1352002531).

The spelling of 1300002500 in words is "one billion, three hundred million, two thousand, five hundred".