1513443409 has 3 divisors (see below), whose sum is σ = 1513482313. Its totient is φ = 1513404506.

The previous prime is 1513443383. The next prime is 1513443413. The reversal of 1513443409 is 9043443151.

The square root of 1513443409 is 38903.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is not a de Polignac number, because 1513443409 - 2⁹ = 1513442897 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1513443509) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 19452 + ... + 58354.

Almost surely, 2^1513443409 is an apocalyptic number.

1513443409 is the 38903-rd square number.

1513443409 is the 19452-nd centered octagonal number.

It is an amenable number.

1513443409 is a deficient number, since it is larger than the sum of its proper divisors (38904).

1513443409 is an frugal number, since it uses more digits than its factorization.

1513443409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77806 (or 38903 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 34.

The cubic root of 1513443409 is about 1148.1238239390.

The spelling of 1513443409 in words is "one billion, five hundred thirteen million, four hundred forty-three thousand, four hundred nine".