12729375 has 60 divisors (see below), whose sum is σ = 24042304. Its totient is φ = 6480000.

The previous prime is 12729361. The next prime is 12729383. The reversal of 12729375 is 57392721.

12729375 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 12729375 - 2⁴ = 12729359 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 174339 + ... + 174411.

Almost surely, 2^12729375 is an apocalyptic number.

12729375 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

12729375 is a deficient number, since it is larger than the sum of its proper divisors (11312929).

12729375 is an equidigital number, since it uses as much as digits as its factorization.

12729375 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130 (or 112 counting only the distinct ones).

The product of its digits is 26460, while the sum is 36.

The square root of 12729375 is about 3567.8249676799. The cubic root of 12729375 is about 233.4903987848.

The spelling of 12729375 in words is "twelve million, seven hundred twenty-nine thousand, three hundred seventy-five".