1000113540 has 24 divisors (see below), whose sum is σ = 2800318080. Its totient is φ = 266696928.

The previous prime is 1000113539. The next prime is 1000113547. The reversal of 1000113540 is 453110001.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is not an unprimeable number, because it can be changed into a prime (1000113547) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8334220 + ... + 8334339.

It is an arithmetic number, because the mean of its divisors is an integer number (116679920).

Almost surely, 2^1000113540 is an apocalyptic number.

1000113540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1000113540 is an abundant number, since it is smaller than the sum of its proper divisors (1800204540).

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

1000113540 is a wasteful number, since it uses less digits than its factorization.

1000113540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16668571 (or 16668569 counting only the distinct ones).

The product of its (nonzero) digits is 60, while the sum is 15.

The square root of 1000113540 is about 31624.5717757569. The cubic root of 1000113540 is about 1000.0378452344.

Adding to 1000113540 its reverse (453110001), we get a palindrome (1453223541).

The spelling of 1000113540 in words is "one billion, one hundred thirteen thousand, five hundred forty".