12090623 has 2 divisors, whose sum is σ = 12090624. Its totient is φ = 12090622.

The previous prime is 12090599. The next prime is 12090641. The reversal of 12090623 is 32609021.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12090623 - 2¹⁴ = 12074239 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12090653) 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 as a sum of consecutive naturals, namely, 6045311 + 6045312.

It is an arithmetic number, because the mean of its divisors is an integer number (6045312).

Almost surely, 2^12090623 is an apocalyptic number.

12090623 is a deficient number, since it is larger than the sum of its proper divisors (1).

12090623 is an equidigital number, since it uses as much as digits as its factorization.

12090623 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 648, while the sum is 23.

The square root of 12090623 is about 3477.1573159695. The cubic root of 12090623 is about 229.5177229001.

Adding to 12090623 its reverse (32609021), we get a palindrome (44699644).

The spelling of 12090623 in words is "twelve million, ninety thousand, six hundred twenty-three".