1092145 has 8 divisors (see below), whose sum is σ = 1322856. Its totient is φ = 865536.

The previous prime is 1092137. The next prime is 1092151. The reversal of 1092145 is 5412901.

It can be written as a sum of positive squares in 4 ways, for example, as 8464 + 1083681 = 92^2 + 1041^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1092145 - 2³ = 1092137 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 402 + ... + 1531.

It is an arithmetic number, because the mean of its divisors is an integer number (165357).

2^1092145 is an apocalyptic number.

It is an amenable number.

1092145 is a deficient number, since it is larger than the sum of its proper divisors (230711).

1092145 is a wasteful number, since it uses less digits than its factorization.

1092145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2051.

The product of its (nonzero) digits is 360, while the sum is 22.

The square root of 1092145 is about 1045.0574146907. The cubic root of 1092145 is about 102.9817103919.

The spelling of 1092145 in words is "one million, ninety-two thousand, one hundred forty-five".