1098045 has 24 divisors (see below), whose sum is σ = 2050776. Its totient is φ = 540288.

The previous prime is 1098037. The next prime is 1098073. The reversal of 1098045 is 5408901.

It can be written as a sum of positive squares in 4 ways, for example, as 39204 + 1058841 = 198^2 + 1029^2 .

It is not a de Polignac number, because 1098045 - 2³ = 1098037 is a prime.

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 23 ways as a sum of consecutive naturals, for example, 354 + ... + 1523.

It is an arithmetic number, because the mean of its divisors is an integer number (85449).

2^1098045 is an apocalyptic number.

1098045 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1098045 is a deficient number, since it is larger than the sum of its proper divisors (952731).

1098045 is a wasteful number, since it uses less digits than its factorization.

1098045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1901 (or 1898 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 27.

The square root of 1098045 is about 1047.8764240119. The cubic root of 1098045 is about 103.1668205037.

It can be divided in two parts, 10980 and 45, that added together give a square (11025 = 105²).

The spelling of 1098045 in words is "one million, ninety-eight thousand, forty-five".