1315173 has 4 divisors (see below), whose sum is σ = 1753568. Its totient is φ = 876780.

The previous prime is 1315159. The next prime is 1315177. The reversal of 1315173 is 3715131.

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 1315173 - 2⁸ = 1314917 is a prime.

It is a D-number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1315177) 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, 219193 + ... + 219198.

It is an arithmetic number, because the mean of its divisors is an integer number (438392).

2^1315173 is an apocalyptic number.

It is an amenable number.

1315173 is a deficient number, since it is larger than the sum of its proper divisors (438395).

1315173 is an equidigital number, since it uses as much as digits as its factorization.

1315173 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 438394.

The product of its digits is 315, while the sum is 21.

The square root of 1315173 is about 1146.8099232218. The cubic root of 1315173 is about 109.5622547933.

The spelling of 1315173 in words is "one million, three hundred fifteen thousand, one hundred seventy-three".