1325561 has 8 divisors (see below), whose sum is σ = 1404480. Its totient is φ = 1248912.

The previous prime is 1325557. The next prime is 1325567. The reversal of 1325561 is 1655231.

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 1325561 - 2² = 1325557 is a prime.

It is a super-2 number, since 2×1325561² = 3514223929442, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1325567) 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, 716 + ... + 1778.

It is an arithmetic number, because the mean of its divisors is an integer number (175560).

2^1325561 is an apocalyptic number.

It is an amenable number.

1325561 is a deficient number, since it is larger than the sum of its proper divisors (78919).

1325561 is a wasteful number, since it uses less digits than its factorization.

1325561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1135.

The product of its digits is 900, while the sum is 23.

The square root of 1325561 is about 1151.3301003622. The cubic root of 1325561 is about 109.8499607297.

The spelling of 1325561 in words is "one million, three hundred twenty-five thousand, five hundred sixty-one".