1085149 has 6 divisors (see below), whose sum is σ = 1175226. Its totient is φ = 1001520.

The previous prime is 1085143. The next prime is 1085153. The reversal of 1085149 is 9415801.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 13924 + 1071225 = 118^2 + 1035^2 .

It is not a de Polignac number, because 1085149 - 2³ = 1085141 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1085141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3042 + ... + 3379.

It is an arithmetic number, because the mean of its divisors is an integer number (195871).

2^1085149 is an apocalyptic number.

It is an amenable number.

1085149 is a deficient number, since it is larger than the sum of its proper divisors (90077).

1085149 is an equidigital number, since it uses as much as digits as its factorization.

1085149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6447 (or 6434 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 28.

The square root of 1085149 is about 1041.7048526334. The cubic root of 1085149 is about 102.7613477402.

The spelling of 1085149 in words is "one million, eighty-five thousand, one hundred forty-nine".