1325523 has 4 divisors (see below), whose sum is σ = 1767368. Its totient is φ = 883680.

The previous prime is 1325521. The next prime is 1325543. The reversal of 1325523 is 3255231.

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

It is not a de Polignac number, because 1325523 - 2¹ = 1325521 is a prime.

It is a super-2 number, since 2×1325523² = 3514022447058, which contains 22 as substring.

It is a D-number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1325523.

It is not an unprimeable number, because it can be changed into a prime (1325521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 220918 + ... + 220923.

It is an arithmetic number, because the mean of its divisors is an integer number (441842).

2^1325523 is an apocalyptic number.

1325523 is a deficient number, since it is larger than the sum of its proper divisors (441845).

1325523 is an equidigital number, since it uses as much as digits as its factorization.

1325523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 441844.

The product of its digits is 900, while the sum is 21.

The square root of 1325523 is about 1151.3135975919. The cubic root of 1325523 is about 109.8489110262.

The spelling of 1325523 in words is "one million, three hundred twenty-five thousand, five hundred twenty-three".