12120375 has 16 divisors (see below), whose sum is σ = 20168928. Its totient is φ = 6464000.

The previous prime is 12120343. The next prime is 12120391. The reversal of 12120375 is 57302121.

It is not a de Polignac number, because 12120375 - 2⁵ = 12120343 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15786 + ... + 16535.

It is an arithmetic number, because the mean of its divisors is an integer number (1260558).

Almost surely, 2^12120375 is an apocalyptic number.

12120375 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

12120375 is a deficient number, since it is larger than the sum of its proper divisors (8048553).

12120375 is an equidigital number, since it uses as much as digits as its factorization.

12120375 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32339 (or 32329 counting only the distinct ones).

The product of its (nonzero) digits is 420, while the sum is 21.

The square root of 12120375 is about 3481.4328946570. The cubic root of 12120375 is about 229.7058305978.

Adding to 12120375 its reverse (57302121), we get a palindrome (69422496).

It can be divided in two parts, 121203 and 75, that multiplied together give a square (9090225 = 3015²).

The spelling of 12120375 in words is "twelve million, one hundred twenty thousand, three hundred seventy-five".