1315893 has 4 divisors (see below), whose sum is σ = 1754528. Its totient is φ = 877260.

The previous prime is 1315891. The next prime is 1315901. The reversal of 1315893 is 3985131.

It is a happy number.

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.

It is not a de Polignac number, because 1315893 - 2¹ = 1315891 is a prime.

It is a D-number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1315893.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1315891) 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, 219313 + ... + 219318.

It is an arithmetic number, because the mean of its divisors is an integer number (438632).

2^1315893 is an apocalyptic number.

It is an amenable number.

1315893 is a deficient number, since it is larger than the sum of its proper divisors (438635).

1315893 is an equidigital number, since it uses as much as digits as its factorization.

1315893 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 438634.

The product of its digits is 3240, while the sum is 30.

The square root of 1315893 is about 1147.1237945401. The cubic root of 1315893 is about 109.5822446685.

The spelling of 1315893 in words is "one million, three hundred fifteen thousand, eight hundred ninety-three".