1313047 has 4 divisors (see below), whose sum is σ = 1370160. Its totient is φ = 1255936.

The previous prime is 1313041. The next prime is 1313057. The reversal of 1313047 is 7403131.

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

It is a cyclic number.

It is not a de Polignac number, because 1313047 - 2¹¹ = 1310999 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 (1313041) 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, 28522 + ... + 28567.

It is an arithmetic number, because the mean of its divisors is an integer number (342540).

2^1313047 is an apocalyptic number.

1313047 is the 613-rd centered heptagonal number.

1313047 is a deficient number, since it is larger than the sum of its proper divisors (57113).

1313047 is an equidigital number, since it uses as much as digits as its factorization.

1313047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57112.

The product of its (nonzero) digits is 252, while the sum is 19.

The square root of 1313047 is about 1145.8826292426. The cubic root of 1313047 is about 109.5031865242.

Adding to 1313047 its reverse (7403131), we get a palindrome (8716178).

The spelling of 1313047 in words is "one million, three hundred thirteen thousand, forty-seven".