1325409 has 8 divisors (see below), whose sum is σ = 1784160. Its totient is φ = 875136.

The previous prime is 1325399. The next prime is 1325417. The reversal of 1325409 is 9045231.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1325409 - 2¹⁶ = 1259873 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1325419) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1744 + ... + 2385.

It is an arithmetic number, because the mean of its divisors is an integer number (223020).

2^1325409 is an apocalyptic number.

It is an amenable number.

1325409 is a deficient number, since it is larger than the sum of its proper divisors (458751).

1325409 is a wasteful number, since it uses less digits than its factorization.

1325409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4239.

The product of its (nonzero) digits is 1080, while the sum is 24.

The square root of 1325409 is about 1151.2640878617. The cubic root of 1325409 is about 109.8457617950.

The spelling of 1325409 in words is "one million, three hundred twenty-five thousand, four hundred nine".