12320075 has 24 divisors (see below), whose sum is σ = 16539120. Its totient is φ = 9072000.

The previous prime is 12320071. The next prime is 12320083. The reversal of 12320075 is 57002321.

It is not a de Polignac number, because 12320075 - 2² = 12320071 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12320071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 17225 + ... + 17925.

It is an arithmetic number, because the mean of its divisors is an integer number (689130).

Almost surely, 2^12320075 is an apocalyptic number.

12320075 is a deficient number, since it is larger than the sum of its proper divisors (4219045).

12320075 is a wasteful number, since it uses less digits than its factorization.

12320075 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 767 (or 762 counting only the distinct ones).

The product of its (nonzero) digits is 420, while the sum is 20.

The square root of 12320075 is about 3509.9964387446. The cubic root of 12320075 is about 230.9605387263.

Adding to 12320075 its reverse (57002321), we get a palindrome (69322396).

The spelling of 12320075 in words is "twelve million, three hundred twenty thousand, seventy-five".