1325239 has 4 divisors (see below), whose sum is σ = 1330056. Its totient is φ = 1320424.

The previous prime is 1325227. The next prime is 1325251. The reversal of 1325239 is 9325231.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9325231 = 17 ⋅548543.

It is an interprime number because it is at equal distance from previous prime (1325227) and next prime (1325251).

It is a cyclic number.

It is not a de Polignac number, because 1325239 - 2⁷ = 1325111 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1325939) 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, 1969 + ... + 2554.

It is an arithmetic number, because the mean of its divisors is an integer number (332514).

2^1325239 is an apocalyptic number.

1325239 is a deficient number, since it is larger than the sum of its proper divisors (4817).

1325239 is an equidigital number, since it uses as much as digits as its factorization.

1325239 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4816.

The product of its digits is 1620, while the sum is 25.

The square root of 1325239 is about 1151.1902536071. The cubic root of 1325239 is about 109.8410652377.

It can be divided in two parts, 13 and 25239, that added together give a palindrome (25252).

The spelling of 1325239 in words is "one million, three hundred twenty-five thousand, two hundred thirty-nine".