3128601500 has 24 divisors (see below), whose sum is σ = 6832866768. Its totient is φ = 1251440400.

The previous prime is 3128601491. The next prime is 3128601517. The reversal of 3128601500 is 51068213.

It is a self number, because there is not a number n which added to its sum of digits gives 3128601500.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3128102 + ... + 3129101.

It is an arithmetic number, because the mean of its divisors is an integer number (284702782).

Almost surely, 2^3128601500 is an apocalyptic number.

It is an amenable number.

3128601500 is an abundant number, since it is smaller than the sum of its proper divisors (3704265268).

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

3128601500 is a wasteful number, since it uses less digits than its factorization.

3128601500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6257222 (or 6257210 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 26.

The square root of 3128601500 is about 55933.9029569723. The cubic root of 3128601500 is about 1462.5702988100.

Adding to 3128601500 its reverse (51068213), we get a palindrome (3179669713).

The spelling of 3128601500 in words is "three billion, one hundred twenty-eight million, six hundred one thousand, five hundred".