1089081 has 24 divisors (see below), whose sum is σ = 1834560. Its totient is φ = 609696.

The previous prime is 1089047. The next prime is 1089091. The reversal of 1089081 is 1809801.

It is not a de Polignac number, because 1089081 - 2⁶ = 1089017 is a prime.

It is a super-2 number, since 2×1089081² = 2372194849122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1089091) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3571 + ... + 3863.

It is an arithmetic number, because the mean of its divisors is an integer number (76440).

2^1089081 is an apocalyptic number.

It is an amenable number.

1089081 is a deficient number, since it is larger than the sum of its proper divisors (745479).

1089081 is a wasteful number, since it uses less digits than its factorization.

1089081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 365 (or 362 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 27.

The square root of 1089081 is about 1043.5904369052. The cubic root of 1089081 is about 102.8853155301.

The spelling of 1089081 in words is "one million, eighty-nine thousand, eighty-one".