1325521 has 2 divisors, whose sum is σ = 1325522. Its totient is φ = 1325520.

The previous prime is 1325509. The next prime is 1325543. The reversal of 1325521 is 1255231.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1299600 + 25921 = 1140^2 + 161^2 .

It is a cyclic number.

It is not a de Polignac number, because 1325521 - 2¹⁷ = 1194449 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1325501) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 662760 + 662761.

It is an arithmetic number, because the mean of its divisors is an integer number (662761).

2^1325521 is an apocalyptic number.

It is an amenable number.

1325521 is a deficient number, since it is larger than the sum of its proper divisors (1).

1325521 is an equidigital number, since it uses as much as digits as its factorization.

1325521 is an evil number, because the sum of its binary digits is even.

The product of its digits is 300, while the sum is 19.

The square root of 1325521 is about 1151.3127290185. The cubic root of 1325521 is about 109.8488557780.

The spelling of 1325521 in words is "one million, three hundred twenty-five thousand, five hundred twenty-one".