1081588 has 12 divisors (see below), whose sum is σ = 1925280. Its totient is φ = 531512.

The previous prime is 1081583. The next prime is 1081631. The reversal of 1081588 is 8851801.

It is a happy number.

It is a super-4 number, since 4×1081588⁴ (a number of 25 digits) contains 4444 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1081583) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 2056 + ... + 2527.

It is an arithmetic number, because the mean of its divisors is an integer number (160440).

2^1081588 is an apocalyptic number.

It is an amenable number.

1081588 is a deficient number, since it is larger than the sum of its proper divisors (843692).

1081588 is a wasteful number, since it uses less digits than its factorization.

1081588 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4646 (or 4644 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 31.

The square root of 1081588 is about 1039.9942307532. The cubic root of 1081588 is about 102.6488181337.

It can be divided in two parts, 1081 and 588, that multiplied together give a triangular number (635628 = T₁₁₂₇).

The spelling of 1081588 in words is "one million, eighty-one thousand, five hundred eighty-eight".