12045623 has 2 divisors, whose sum is σ = 12045624. Its totient is φ = 12045622.

The previous prime is 12045619. The next prime is 12045641. The reversal of 12045623 is 32654021.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12045623 - 2² = 12045619 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12045653) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6022811 + 6022812.

It is an arithmetic number, because the mean of its divisors is an integer number (6022812).

Almost surely, 2^12045623 is an apocalyptic number.

12045623 is a deficient number, since it is larger than the sum of its proper divisors (1).

12045623 is an equidigital number, since it uses as much as digits as its factorization.

12045623 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 12045623 is about 3470.6804808279. The cubic root of 12045623 is about 229.2326221324.

Adding to 12045623 its reverse (32654021), we get a palindrome (44699644).

The spelling of 12045623 in words is "twelve million, forty-five thousand, six hundred twenty-three".