1313549143 has 8 divisors (see below), whose sum is σ = 1356397056. Its totient is φ = 1270731000.

The previous prime is 1313549129. The next prime is 1313549147. The reversal of 1313549143 is 3419453131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1313549143 - 2⁹ = 1313548631 is a prime.

It is a super-2 number, since 2×1313549143² = 3450822702152068898, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1313549099 and 1313549108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1313549147) 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 7 ways as a sum of consecutive naturals, for example, 113880 + ... + 124882.

It is an arithmetic number, because the mean of its divisors is an integer number (169549632).

Almost surely, 2^1313549143 is an apocalyptic number.

1313549143 is a deficient number, since it is larger than the sum of its proper divisors (42847913).

1313549143 is a wasteful number, since it uses less digits than its factorization.

1313549143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14885.

The product of its digits is 19440, while the sum is 34.

The square root of 1313549143 is about 36242.9185221058. The cubic root of 1313549143 is about 1095.1714369166.

The spelling of 1313549143 in words is "one billion, three hundred thirteen million, five hundred forty-nine thousand, one hundred forty-three".