1313545 has 4 divisors (see below), whose sum is σ = 1576260. Its totient is φ = 1050832.

The previous prime is 1313467. The next prime is 1313567. The reversal of 1313545 is 5453131.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 594441 + 719104 = 771^2 + 848^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1313545 is a prime.

It is an unprimeable number.

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, 131350 + ... + 131359.

It is an arithmetic number, because the mean of its divisors is an integer number (394065).

2^1313545 is an apocalyptic number.

It is an amenable number.

1313545 is a deficient number, since it is larger than the sum of its proper divisors (262715).

1313545 is an equidigital number, since it uses as much as digits as its factorization.

1313545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 262714.

The product of its digits is 900, while the sum is 22.

The square root of 1313545 is about 1146.0999083850. The cubic root of 1313545 is about 109.5170285507.

Adding to 1313545 its reverse (5453131), we get a palindrome (6766676).

The spelling of 1313545 in words is "one million, three hundred thirteen thousand, five hundred forty-five".