1313641 has 24 divisors (see below), whose sum is σ = 1723680. Its totient is φ = 991872.

The previous prime is 1313633. The next prime is 1313651. The reversal of 1313641 is 1463131.

It is not a de Polignac number, because 1313641 - 2³ = 1313633 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19).

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

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 15786 + ... + 15868.

It is an arithmetic number, because the mean of its divisors is an integer number (71820).

2^1313641 is an apocalyptic number.

It is an amenable number.

1313641 is a deficient number, since it is larger than the sum of its proper divisors (410039).

1313641 is a wasteful number, since it uses less digits than its factorization.

1313641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133 (or 126 counting only the distinct ones).

The product of its digits is 216, while the sum is 19.

The square root of 1313641 is about 1146.1417887853. The cubic root of 1313641 is about 109.5196964909.

Adding to 1313641 its reverse (1463131), we get a palindrome (2776772).

The spelling of 1313641 in words is "one million, three hundred thirteen thousand, six hundred forty-one".