1325997 has 16 divisors (see below), whose sum is σ = 1996480. Its totient is φ = 869616.

The previous prime is 1325993. The next prime is 1326001. The reversal of 1325997 is 7995231.

It is an interprime number because it is at equal distance from previous prime (1325993) and next prime (1326001).

It is not a de Polignac number, because 1325997 - 2² = 1325993 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1325993) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1443 + ... + 2175.

It is an arithmetic number, because the mean of its divisors is an integer number (124780).

2^1325997 is an apocalyptic number.

It is an amenable number.

1325997 is a deficient number, since it is larger than the sum of its proper divisors (670483).

1325997 is an equidigital number, since it uses as much as digits as its factorization.

1325997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 809 (or 803 counting only the distinct ones).

The product of its digits is 17010, while the sum is 36.

The square root of 1325997 is about 1151.5194310128. The cubic root of 1325997 is about 109.8620032618.

The spelling of 1325997 in words is "one million, three hundred twenty-five thousand, nine hundred ninety-seven".