1098165 has 16 divisors (see below), whose sum is σ = 1771200. Its totient is φ = 580992.

The previous prime is 1098151. The next prime is 1098187. The reversal of 1098165 is 5618901.

It is a happy number.

It is not a de Polignac number, because 1098165 - 2⁵ = 1098133 is a prime.

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

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2481 + ... + 2889.

It is an arithmetic number, because the mean of its divisors is an integer number (110700).

2^1098165 is an apocalyptic number.

1098165 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1098165 is a deficient number, since it is larger than the sum of its proper divisors (673035).

1098165 is a wasteful number, since it uses less digits than its factorization.

1098165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 596.

The product of its (nonzero) digits is 2160, while the sum is 30.

The square root of 1098165 is about 1047.9336811077. The cubic root of 1098165 is about 103.1705785669.

The spelling of 1098165 in words is "one million, ninety-eight thousand, one hundred sixty-five".