1513540140 has 48 divisors (see below), whose sum is σ = 4843329792. Its totient is φ = 345951936.

The previous prime is 1513540123. The next prime is 1513540159. The reversal of 1513540140 is 410453151.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 1513540140.

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, 1801414 + ... + 1802253.

It is an arithmetic number, because the mean of its divisors is an integer number (100902704).

Almost surely, 2^1513540140 is an apocalyptic number.

1513540140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1513540140 is an abundant number, since it is smaller than the sum of its proper divisors (3329789652).

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

1513540140 is a wasteful number, since it uses less digits than its factorization.

1513540140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3603686 (or 3603684 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 24.

The square root of 1513540140 is about 38904.2432133052. The cubic root of 1513540140 is about 1148.1482840100.

Adding to 1513540140 its reverse (410453151), we get a palindrome (1923993291).

The spelling of 1513540140 in words is "one billion, five hundred thirteen million, five hundred forty thousand, one hundred forty".