1325591 has 8 divisors (see below), whose sum is σ = 1392768. Its totient is φ = 1260000.

The previous prime is 1325581. The next prime is 1325617. The reversal of 1325591 is 1955231.

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

It is a cyclic number.

It is not a de Polignac number, because 1325591 - 2¹⁰ = 1324567 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1325591.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1325501) 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, 1541 + ... + 2241.

It is an arithmetic number, because the mean of its divisors is an integer number (174096).

2^1325591 is an apocalyptic number.

1325591 is a deficient number, since it is larger than the sum of its proper divisors (67177).

1325591 is an equidigital number, since it uses as much as digits as its factorization.

1325591 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 793.

The product of its digits is 1350, while the sum is 26.

The square root of 1325591 is about 1151.3431286980. The cubic root of 1325591 is about 109.8507894289.

The spelling of 1325591 in words is "one million, three hundred twenty-five thousand, five hundred ninety-one".