1345636 has 12 divisors (see below), whose sum is σ = 2364012. Its totient is φ = 670208.

The previous prime is 1345633. The next prime is 1345649. The reversal of 1345636 is 6365431.

It can be written as a sum of positive squares in 2 ways, for example, as 553536 + 792100 = 744^2 + 890^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1345633) by changing a digit.

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, 936 + ... + 1888.

It is an arithmetic number, because the mean of its divisors is an integer number (197001).

2^1345636 is an apocalyptic number.

It is an amenable number.

1345636 is a deficient number, since it is larger than the sum of its proper divisors (1018376).

1345636 is a wasteful number, since it uses less digits than its factorization.

1345636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1310 (or 1308 counting only the distinct ones).

The product of its digits is 6480, while the sum is 28.

The square root of 1345636 is about 1160.0155171376. The cubic root of 1345636 is about 110.4017266761.

It can be divided in two parts, 13456 and 36, that multiplied together give a square (484416 = 696²).

The spelling of 1345636 in words is "one million, three hundred forty-five thousand, six hundred thirty-six".