1313513471 has 4 divisors (see below), whose sum is σ = 1315387944. Its totient is φ = 1311639000.

The previous prime is 1313513447. The next prime is 1313513473. The reversal of 1313513471 is 1743153131.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1313513471 is a prime.

It is a super-3 number, since 3×1313513471³ (a number of 28 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1313513473) 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, 936185 + ... + 937586.

It is an arithmetic number, because the mean of its divisors is an integer number (328846986).

Almost surely, 2^1313513471 is an apocalyptic number.

1313513471 is a deficient number, since it is larger than the sum of its proper divisors (1874473).

1313513471 is an equidigital number, since it uses as much as digits as its factorization.

1313513471 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1874472.

The product of its digits is 3780, while the sum is 29.

The square root of 1313513471 is about 36242.4263950415. The cubic root of 1313513471 is about 1095.1615229850.

The spelling of 1313513471 in words is "one billion, three hundred thirteen million, five hundred thirteen thousand, four hundred seventy-one".