1098075 has 30 divisors (see below), whose sum is σ = 1997020. Its totient is φ = 532400.

The previous prime is 1098073. The next prime is 1098077. The reversal of 1098075 is 5708901.

It is an interprime number because it is at equal distance from previous prime (1098073) and next prime (1098077).

It is not a de Polignac number, because 1098075 - 2¹ = 1098073 is a prime.

It is an Ulam number.

It is a plaindrome in base 7.

It is not an unprimeable number, because it can be changed into a prime (1098073) by changing a digit.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 99820 + ... + 99830.

2^1098075 is an apocalyptic number.

1098075 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1098075 is a deficient number, since it is larger than the sum of its proper divisors (898945).

1098075 is an frugal number, since it uses more digits than its factorization.

1098075 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57 (or 19 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 30.

The square root of 1098075 is about 1047.8907385792. The cubic root of 1098075 is about 103.1677600452.

The spelling of 1098075 in words is "one million, ninety-eight thousand, seventy-five".