12001375 has 16 divisors (see below), whose sum is σ = 15211872. Its totient is φ = 9451200.

The previous prime is 12001361. The next prime is 12001387. The reversal of 12001375 is 57310021.

It is a de Polignac number, because none of the positive numbers 2^k-12001375 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7659 + ... + 9091.

It is an arithmetic number, because the mean of its divisors is an integer number (950742).

Almost surely, 2^12001375 is an apocalyptic number.

12001375 is a deficient number, since it is larger than the sum of its proper divisors (3210497).

12001375 is an equidigital number, since it uses as much as digits as its factorization.

12001375 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1515 (or 1505 counting only the distinct ones).

The product of its (nonzero) digits is 210, while the sum is 19.

The square root of 12001375 is about 3464.3000736079. The cubic root of 12001375 is about 228.9515925216.

Adding to 12001375 its reverse (57310021), we get a palindrome (69311396).

The spelling of 12001375 in words is "twelve million, one thousand, three hundred seventy-five".