1325681 has 8 divisors (see below), whose sum is σ = 1523520. Its totient is φ = 1129968.

The previous prime is 1325669. The next prime is 1325693. The reversal of 1325681 is 1865231.

It is an interprime number because it is at equal distance from previous prime (1325669) and next prime (1325693).

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

It is not a de Polignac number, because 1325681 - 2⁶ = 1325617 is a prime.

It is a super-2 number, since 2×1325681² = 3514860227522, which contains 22 as substring.

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 1325681.

It is not an unprimeable number, because it can be changed into a prime (1325581) 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, 1190 + ... + 2016.

It is an arithmetic number, because the mean of its divisors is an integer number (190440).

2^1325681 is an apocalyptic number.

It is an amenable number.

1325681 is a deficient number, since it is larger than the sum of its proper divisors (197839).

1325681 is an equidigital number, since it uses as much as digits as its factorization.

1325681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1063.

The product of its digits is 1440, while the sum is 26.

The square root of 1325681 is about 1151.3822128207. The cubic root of 1325681 is about 109.8532754515.

The spelling of 1325681 in words is "one million, three hundred twenty-five thousand, six hundred eighty-one".