12000075 has 12 divisors (see below), whose sum is σ = 19840248. Its totient is φ = 6400000.

The previous prime is 12000073. The next prime is 12000091. The reversal of 12000075 is 57000021.

It is a happy number.

It is not a de Polignac number, because 12000075 - 2¹ = 12000073 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is not an unprimeable number, because it can be changed into a prime (12000073) 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, 79926 + ... + 80075.

It is an arithmetic number, because the mean of its divisors is an integer number (1653354).

Almost surely, 2^12000075 is an apocalyptic number.

12000075 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

12000075 is a deficient number, since it is larger than the sum of its proper divisors (7840173).

12000075 is a wasteful number, since it uses less digits than its factorization.

12000075 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160014 (or 160009 counting only the distinct ones).

The product of its (nonzero) digits is 70, while the sum is 15.

The square root of 12000075 is about 3464.1124404384. The cubic root of 12000075 is about 228.9433254739.

Adding to 12000075 its reverse (57000021), we get a palindrome (69000096).

It can be divided in two parts, 120000 and 75, that multiplied together give a square (9000000 = 3000²).

The spelling of 12000075 in words is "twelve million, seventy-five", and thus it is an aban number and an uban number.