1089149 has 4 divisors (see below), whose sum is σ = 1093440. Its totient is φ = 1084860.

The previous prime is 1089133. The next prime is 1089161. The reversal of 1089149 is 9419801.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1089149 - 2⁴ = 1089133 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1082149) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1739 + ... + 2280.

It is an arithmetic number, because the mean of its divisors is an integer number (273360).

2^1089149 is an apocalyptic number.

It is an amenable number.

1089149 is a deficient number, since it is larger than the sum of its proper divisors (4291).

1089149 is an equidigital number, since it uses as much as digits as its factorization.

1089149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4290.

The product of its (nonzero) digits is 2592, while the sum is 32.

The square root of 1089149 is about 1043.6230162276. The cubic root of 1089149 is about 102.8874568021.

It can be divided in two parts, 1089 and 149, that multiplied together give a palindrome (162261).

The spelling of 1089149 in words is "one million, eighty-nine thousand, one hundred forty-nine".