1325281 has 4 divisors (see below), whose sum is σ = 1368064. Its totient is φ = 1282500.

The previous prime is 1325273. The next prime is 1325287. The reversal of 1325281 is 1825231.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1825231 = 29 ⋅62939.

It is a cyclic number.

It is not a de Polignac number, because 1325281 - 2³ = 1325273 is a prime.

It is a super-2 number, since 2×1325281² = 3512739457922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1325287) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21345 + ... + 21406.

It is an arithmetic number, because the mean of its divisors is an integer number (342016).

2^1325281 is an apocalyptic number.

It is an amenable number.

1325281 is a deficient number, since it is larger than the sum of its proper divisors (42783).

1325281 is an equidigital number, since it uses as much as digits as its factorization.

1325281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42782.

The product of its digits is 480, while the sum is 22.

The square root of 1325281 is about 1151.2084954516. The cubic root of 1325281 is about 109.8422256010.

Subtracting from 1325281 its product of digits (480), we obtain a square (1324801 = 1151²).

The spelling of 1325281 in words is "one million, three hundred twenty-five thousand, two hundred eighty-one".