1232105 has 24 divisors (see below), whose sum is σ = 1772928. Its totient is φ = 819168.

The previous prime is 1232089. The next prime is 1232171. The reversal of 1232105 is 5012321.

1232105 = 60² + 61² + ... + 157².

It is a happy number.

It is not a de Polignac number, because 1232105 - 2⁴ = 1232089 is a prime.

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

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1232105.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 11462 + ... + 11568.

It is an arithmetic number, because the mean of its divisors is an integer number (73872).

2^1232105 is an apocalyptic number.

It is an amenable number.

1232105 is a deficient number, since it is larger than the sum of its proper divisors (540823).

1232105 is a wasteful number, since it uses less digits than its factorization.

1232105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 173 (or 166 counting only the distinct ones).

The product of its (nonzero) digits is 60, while the sum is 14.

The square root of 1232105 is about 1110.0022522500. The cubic root of 1232105 is about 107.2052136489.

Adding to 1232105 its reverse (5012321), we get a palindrome (6244426).

The spelling of 1232105 in words is "one million, two hundred thirty-two thousand, one hundred five".