1081544 has 8 divisors (see below), whose sum is σ = 2027910. Its totient is φ = 540768.

The previous prime is 1081541. The next prime is 1081583. The reversal of 1081544 is 4451801.

It can be written as a sum of positive squares in only one way, i.e., 792100 + 289444 = 890^2 + 538^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (1081541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67589 + ... + 67604.

2^1081544 is an apocalyptic number.

It is an amenable number.

1081544 is a deficient number, since it is larger than the sum of its proper divisors (946366).

1081544 is a wasteful number, since it uses less digits than its factorization.

1081544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135199 (or 135195 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 23.

The square root of 1081544 is about 1039.9730765746. The cubic root of 1081544 is about 102.6474261652.

The spelling of 1081544 in words is "one million, eighty-one thousand, five hundred forty-four".