12290075 has 12 divisors (see below), whose sum is σ = 17417040. Its totient is φ = 8427360.

The previous prime is 12290071. The next prime is 12290123. The reversal of 12290075 is 57009221.

12290075 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 12290075 - 2² = 12290071 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12290071) 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, 34940 + ... + 35289.

It is an arithmetic number, because the mean of its divisors is an integer number (1451420).

Almost surely, 2^12290075 is an apocalyptic number.

12290075 is a deficient number, since it is larger than the sum of its proper divisors (5126965).

12290075 is an equidigital number, since it uses as much as digits as its factorization.

12290075 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70246 (or 70241 counting only the distinct ones).

The product of its (nonzero) digits is 1260, while the sum is 26.

The square root of 12290075 is about 3505.7203254110. The cubic root of 12290075 is about 230.7729195279.

Adding to 12290075 its reverse (57009221), we get a palindrome (69299296).

The spelling of 12290075 in words is "twelve million, two hundred ninety thousand, seventy-five".