12378753 has 6 divisors (see below), whose sum is σ = 17880434. Its totient is φ = 8252496.

The previous prime is 12378739. The next prime is 12378763. The reversal of 12378753 is 35787321.

12378753 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 10909809 + 1468944 = 3303^2 + 1212^2 .

It is not a de Polignac number, because 12378753 - 2⁶ = 12378689 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12378713) 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 5 ways as a sum of consecutive naturals, for example, 687700 + ... + 687717.

Almost surely, 2^12378753 is an apocalyptic number.

It is an amenable number.

12378753 is a deficient number, since it is larger than the sum of its proper divisors (5501681).

12378753 is a wasteful number, since it uses less digits than its factorization.

12378753 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1375423 (or 1375420 counting only the distinct ones).

The product of its digits is 35280, while the sum is 36.

The square root of 12378753 is about 3518.3452076225. The cubic root of 12378753 is about 231.3266307516.

It can be divided in two parts, 12378 and 753, that added together give a palindrome (13131).

The spelling of 12378753 in words is "twelve million, three hundred seventy-eight thousand, seven hundred fifty-three".