1001513540 has 48 divisors (see below), whose sum is σ = 2124952704. Its totient is φ = 396480000.

The previous prime is 1001513533. The next prime is 1001513563. The reversal of 1001513540 is 453151001.

1001513540 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1210607 + ... + 1211433.

It is an arithmetic number, because the mean of its divisors is an integer number (44269848).

Almost surely, 2^1001513540 is an apocalyptic number.

1001513540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1001513540 is an abundant number, since it is smaller than the sum of its proper divisors (1123439164).

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

1001513540 is a wasteful number, since it uses less digits than its factorization.

1001513540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1388 (or 1386 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 20.

The square root of 1001513540 is about 31646.6987219836. The cubic root of 1001513540 is about 1000.5042590134.

Adding to 1001513540 its reverse (453151001), we get a palindrome (1454664541).

The spelling of 1001513540 in words is "one billion, one million, five hundred thirteen thousand, five hundred forty".