12190045 has 8 divisors (see below), whose sum is σ = 16717824. Its totient is φ = 8358864.

The previous prime is 12190043. The next prime is 12190067. The reversal of 12190045 is 54009121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12190045 - 2¹ = 12190043 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12189998 and 12190025.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12190043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 174109 + ... + 174178.

It is an arithmetic number, because the mean of its divisors is an integer number (2089728).

Almost surely, 2^12190045 is an apocalyptic number.

It is an amenable number.

12190045 is a deficient number, since it is larger than the sum of its proper divisors (4527779).

12190045 is an equidigital number, since it uses as much as digits as its factorization.

12190045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 348299.

The product of its (nonzero) digits is 360, while the sum is 22.

The square root of 12190045 is about 3491.4244943862. The cubic root of 12190045 is about 230.1451195071.

Adding to 12190045 its reverse (54009121), we get a palindrome (66199166).

The spelling of 12190045 in words is "twelve million, one hundred ninety thousand, forty-five".