1013127500 has 240 divisors, whose sum is σ = 2918065920. Its totient is φ = 298080000.

The previous prime is 1013127497. The next prime is 1013127517. The reversal of 1013127500 is 57213101.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 3657362 + ... + 3657638.

It is an arithmetic number, because the mean of its divisors is an integer number (12158608).

Almost surely, 2^1013127500 is an apocalyptic number.

1013127500 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 1013127500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1459032960).

1013127500 is an abundant number, since it is smaller than the sum of its proper divisors (1904938420).

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

1013127500 is a wasteful number, since it uses less digits than its factorization.

1013127500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 338 (or 321 counting only the distinct ones).

The product of its (nonzero) digits is 210, while the sum is 20.

The square root of 1013127500 is about 31829.6638373703. The cubic root of 1013127500 is about 1004.3568238523.

The spelling of 1013127500 in words is "one billion, thirteen million, one hundred twenty-seven thousand, five hundred".