1319345 has 4 divisors (see below), whose sum is σ = 1583220. Its totient is φ = 1055472.

The previous prime is 1319333. The next prime is 1319371. The reversal of 1319345 is 5439131.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5439131 = 107 ⋅50833.

It can be written as a sum of positive squares in 2 ways, for example, as 364816 + 954529 = 604^2 + 977^2 .

It is a cyclic number.

It is not a de Polignac number, because 1319345 - 2⁶ = 1319281 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 131930 + ... + 131939.

It is an arithmetic number, because the mean of its divisors is an integer number (395805).

2^1319345 is an apocalyptic number.

It is an amenable number.

1319345 is a deficient number, since it is larger than the sum of its proper divisors (263875).

1319345 is an equidigital number, since it uses as much as digits as its factorization.

1319345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 263874.

The product of its digits is 1620, while the sum is 26.

The square root of 1319345 is about 1148.6274417756. The cubic root of 1319345 is about 109.6779838634.

The spelling of 1319345 in words is "one million, three hundred nineteen thousand, three hundred forty-five".