1513609540 has 48 divisors (see below), whose sum is σ = 3350491200. Its totient is φ = 572787072.

The previous prime is 1513609523. The next prime is 1513609543. The reversal of 1513609540 is 459063151.

1513609540 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 1513609496 and 1513609505.

It is not an unprimeable number, because it can be changed into a prime (1513609543) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 324102 + ... + 328738.

It is an arithmetic number, because the mean of its divisors is an integer number (69801900).

Almost surely, 2^1513609540 is an apocalyptic number.

1513609540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1513609540 is an abundant number, since it is smaller than the sum of its proper divisors (1836881660).

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

1513609540 is a wasteful number, since it uses less digits than its factorization.

1513609540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5524 (or 5522 counting only the distinct ones).

The product of its (nonzero) digits is 16200, while the sum is 34.

The square root of 1513609540 is about 38905.1351366372. The cubic root of 1513609540 is about 1148.1658323328.

The spelling of 1513609540 in words is "one billion, five hundred thirteen million, six hundred nine thousand, five hundred forty".