1098105 has 16 divisors (see below), whose sum is σ = 1849920. Its totient is φ = 554688.

The previous prime is 1098101. The next prime is 1098109. The reversal of 1098105 is 5018901.

It is an interprime number because it is at equal distance from previous prime (1098101) and next prime (1098109).

It is not a de Polignac number, because 1098105 - 2² = 1098101 is a prime.

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

It is not an unprimeable number, because it can be changed into a prime (1098101) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1642 + ... + 2211.

It is an arithmetic number, because the mean of its divisors is an integer number (115620).

2^1098105 is an apocalyptic number.

1098105 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1098105 is a deficient number, since it is larger than the sum of its proper divisors (751815).

1098105 is a wasteful number, since it uses less digits than its factorization.

1098105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3880.

The product of its (nonzero) digits is 360, while the sum is 24.

The square root of 1098105 is about 1047.9050529509. The cubic root of 1098105 is about 103.1686995695.

The spelling of 1098105 in words is "one million, ninety-eight thousand, one hundred five".