1513471540 has 144 divisors (see below), whose sum is σ = 3820924800. Its totient is φ = 493102080.

The previous prime is 1513471513. The next prime is 1513471541. The reversal of 1513471540 is 451743151.

It is a super-2 number, since 2×1513471540² = 4581192204779943200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1513471541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 13885006 + ... + 13885114.

It is an arithmetic number, because the mean of its divisors is an integer number (26534200).

Almost surely, 2^1513471540 is an apocalyptic number.

1513471540 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 1513471540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1910462400).

1513471540 is an abundant number, since it is smaller than the sum of its proper divisors (2307453260).

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

1513471540 is a wasteful number, since it uses less digits than its factorization.

1513471540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 266 (or 223 counting only the distinct ones).

The product of its (nonzero) digits is 8400, while the sum is 31.

The square root of 1513471540 is about 38903.3615514135. The cubic root of 1513471540 is about 1148.1309374461.

The spelling of 1513471540 in words is "one billion, five hundred thirteen million, four hundred seventy-one thousand, five hundred forty".