109485 has 16 divisors (see below), whose sum is σ = 194880. Its totient is φ = 58320.

The previous prime is 109481. The next prime is 109507. The reversal of 109485 is 584901.

It is not a de Polignac number, because 109485 - 2² = 109481 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

109485 is a lucky number.

It is a plaindrome in base 13.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 109485.

It is not an unprimeable number, because it can be changed into a prime (109481) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 271 + ... + 540.

It is an arithmetic number, because the mean of its divisors is an integer number (12180).

2¹⁰⁹⁴⁸⁵ is an apocalyptic number.

109485 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

109485 is a deficient number, since it is larger than the sum of its proper divisors (85395).

109485 is an equidigital number, since it uses as much as digits as its factorization.

109485 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 825 (or 819 counting only the distinct ones).

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

The square root of 109485 is about 330.8851764585. The cubic root of 109485 is about 47.8393063829.

The spelling of 109485 in words is "one hundred nine thousand, four hundred eighty-five".