1325643 has 24 divisors (see below), whose sum is σ = 2063040. Its totient is φ = 750720.

The previous prime is 1325633. The next prime is 1325657. The reversal of 1325643 is 3465231.

It is a happy number.

It is not a de Polignac number, because 1325643 - 2⁴ = 1325627 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1325633) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9468 + ... + 9606.

It is an arithmetic number, because the mean of its divisors is an integer number (85960).

2^1325643 is an apocalyptic number.

1325643 is a deficient number, since it is larger than the sum of its proper divisors (737397).

1325643 is a wasteful number, since it uses less digits than its factorization.

1325643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 187 (or 170 counting only the distinct ones).

The product of its digits is 2160, while the sum is 24.

The square root of 1325643 is about 1151.3657107974. The cubic root of 1325643 is about 109.8522258112.

It can be divided in two parts, 132 and 5643, that added together give a palindrome (5775).

The spelling of 1325643 in words is "one million, three hundred twenty-five thousand, six hundred forty-three".