1081525 has 6 divisors (see below), whose sum is σ = 1341122. Its totient is φ = 865200.

The previous prime is 1081513. The next prime is 1081541. The reversal of 1081525 is 5251801.

It can be written as a sum of positive squares in 3 ways, for example, as 79524 + 1002001 = 282^2 + 1001^2 .

It is a de Polignac number, because none of the positive numbers 2^k-1081525 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1081496 and 1081505.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 21606 + ... + 21655.

2^1081525 is an apocalyptic number.

It is an amenable number.

1081525 is a deficient number, since it is larger than the sum of its proper divisors (259597).

1081525 is an equidigital number, since it uses as much as digits as its factorization.

1081525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43271 (or 43266 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 22.

The square root of 1081525 is about 1039.9639416826. The cubic root of 1081525 is about 102.6468250762.

The spelling of 1081525 in words is "one million, eighty-one thousand, five hundred twenty-five".