1313601 has 4 divisors (see below), whose sum is σ = 1751472. Its totient is φ = 875732.

The previous prime is 1313597. The next prime is 1313621. The reversal of 1313601 is 1063131.

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, and also an emirpimes, since its reverse is a distinct semiprime: 1063131 = 3 ⋅354377.

It is a cyclic number.

It is not a de Polignac number, because 1313601 - 2² = 1313597 is a prime.

It is a D-number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1313621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 218931 + ... + 218936.

It is an arithmetic number, because the mean of its divisors is an integer number (437868).

2^1313601 is an apocalyptic number.

It is an amenable number.

1313601 is a deficient number, since it is larger than the sum of its proper divisors (437871).

1313601 is an equidigital number, since it uses as much as digits as its factorization.

1313601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 437870.

The product of its (nonzero) digits is 54, while the sum is 15.

The square root of 1313601 is about 1146.1243388045. The cubic root of 1313601 is about 109.5185848649.

Adding to 1313601 its reverse (1063131), we get a palindrome (2376732).

The spelling of 1313601 in words is "one million, three hundred thirteen thousand, six hundred one".