1513143525 has 24 divisors (see below), whose sum is σ = 2504916064. Its totient is φ = 805982400.

The previous prime is 1513143517. The next prime is 1513143607. The reversal of 1513143525 is 5253413151.

1513143525 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 1513143525 - 2³ = 1513143517 is a prime.

It is a super-3 number, since 3×1513143525³ (a number of 29 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1513143492 and 1513143501.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 48387 + ... + 73263.

Almost surely, 2^1513143525 is an apocalyptic number.

1513143525 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1513143525 is a deficient number, since it is larger than the sum of its proper divisors (991772539).

1513143525 is a wasteful number, since it uses less digits than its factorization.

1513143525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25701 (or 25696 counting only the distinct ones).

The product of its digits is 9000, while the sum is 30.

The square root of 1513143525 is about 38899.1455561687. The cubic root of 1513143525 is about 1148.0479865679.

Adding to 1513143525 its reverse (5253413151), we get a palindrome (6766556676).

The spelling of 1513143525 in words is "one billion, five hundred thirteen million, one hundred forty-three thousand, five hundred twenty-five".