103231605 has 16 divisors (see below), whose sum is σ = 169012800. Its totient is φ = 53776128.

The previous prime is 103231573. The next prime is 103231607. The reversal of 103231605 is 506132301.

It is not a de Polignac number, because 103231605 - 2⁵ = 103231573 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103231607) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 79380 + ... + 80669.

It is an arithmetic number, because the mean of its divisors is an integer number (10563300).

Almost surely, 2^103231605 is an apocalyptic number.

103231605 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

103231605 is a deficient number, since it is larger than the sum of its proper divisors (65781195).

103231605 is a wasteful number, since it uses less digits than its factorization.

103231605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 160100.

The product of its (nonzero) digits is 540, while the sum is 21.

The square root of 103231605 is about 10160.2955173558. The cubic root of 103231605 is about 469.1058978943.

Adding to 103231605 its reverse (506132301), we get a palindrome (609363906).

The spelling of 103231605 in words is "one hundred three million, two hundred thirty-one thousand, six hundred five".