1513243541 has 4 divisors (see below), whose sum is σ = 1527386112. Its totient is φ = 1499100972.

The previous prime is 1513243513. The next prime is 1513243591. The reversal of 1513243541 is 1453423151.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1513243541 - 2⁶ = 1513243477 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1513243591) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7071125 + ... + 7071338.

It is an arithmetic number, because the mean of its divisors is an integer number (381846528).

Almost surely, 2^1513243541 is an apocalyptic number.

It is an amenable number.

1513243541 is a deficient number, since it is larger than the sum of its proper divisors (14142571).

1513243541 is a wasteful number, since it uses less digits than its factorization.

1513243541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14142570.

The product of its digits is 7200, while the sum is 29.

The square root of 1513243541 is about 38900.4311158630. The cubic root of 1513243541 is about 1148.0732806297.

Adding to 1513243541 its reverse (1453423151), we get a palindrome (2966666692).

The spelling of 1513243541 in words is "one billion, five hundred thirteen million, two hundred forty-three thousand, five hundred forty-one".