12089557 has 2 divisors, whose sum is σ = 12089558. Its totient is φ = 12089556.

The previous prime is 12089551. The next prime is 12089563. The reversal of 12089557 is 75598021.

It is a balanced prime because it is at equal distance from previous prime (12089551) and next prime (12089563).

It can be written as a sum of positive squares in only one way, i.e., 7187761 + 4901796 = 2681^2 + 2214^2 .

It is a cyclic number.

It is not a de Polignac number, because 12089557 - 2¹⁵ = 12056789 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12089551) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6044778 + 6044779.

It is an arithmetic number, because the mean of its divisors is an integer number (6044779).

Almost surely, 2^12089557 is an apocalyptic number.

It is an amenable number.

12089557 is a deficient number, since it is larger than the sum of its proper divisors (1).

12089557 is an equidigital number, since it uses as much as digits as its factorization.

12089557 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 25200, while the sum is 37.

The square root of 12089557 is about 3477.0040264573. The cubic root of 12089557 is about 229.5109773673.

The spelling of 12089557 in words is "twelve million, eighty-nine thousand, five hundred fifty-seven".