12783075 has 12 divisors (see below), whose sum is σ = 21134808. Its totient is φ = 6817600.

The previous prime is 12783049. The next prime is 12783077. The reversal of 12783075 is 57038721.

12783075 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12783075 - 2⁶ = 12783011 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12783077) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 85146 + ... + 85295.

It is an arithmetic number, because the mean of its divisors is an integer number (1761234).

Almost surely, 2^12783075 is an apocalyptic number.

12783075 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

12783075 is a deficient number, since it is larger than the sum of its proper divisors (8351733).

12783075 is a wasteful number, since it uses less digits than its factorization.

12783075 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170454 (or 170449 counting only the distinct ones).

The product of its (nonzero) digits is 11760, while the sum is 33.

The square root of 12783075 is about 3575.3426409227. The cubic root of 12783075 is about 233.8182714970.

The spelling of 12783075 in words is "twelve million, seven hundred eighty-three thousand, seventy-five".