12005045389 has 2 divisors, whose sum is σ = 12005045390. Its totient is φ = 12005045388.

The previous prime is 12005045323. The next prime is 12005045411. The reversal of 12005045389 is 98354050021.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10976752900 + 1028292489 = 104770^2 + 32067^2 .

It is a cyclic number.

It is not a de Polignac number, because 12005045389 - 2¹¹ = 12005043341 is a prime.

It is a super-2 number, since 2×12005045389² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12005045489) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6002522694 + 6002522695.

It is an arithmetic number, because the mean of its divisors is an integer number (6002522695).

Almost surely, 2^12005045389 is an apocalyptic number.

It is an amenable number.

12005045389 is a deficient number, since it is larger than the sum of its proper divisors (1).

12005045389 is an equidigital number, since it uses as much as digits as its factorization.

12005045389 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 43200, while the sum is 37.

The spelling of 12005045389 in words is "twelve billion, five million, forty-five thousand, three hundred eighty-nine".