12839551 has 2 divisors, whose sum is σ = 12839552. Its totient is φ = 12839550.

The previous prime is 12839537. The next prime is 12839557. The reversal of 12839551 is 15593821.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12839551 - 2¹³ = 12831359 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12839557) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6419775 + 6419776.

It is an arithmetic number, because the mean of its divisors is an integer number (6419776).

Almost surely, 2^12839551 is an apocalyptic number.

12839551 is a deficient number, since it is larger than the sum of its proper divisors (1).

12839551 is an equidigital number, since it uses as much as digits as its factorization.

12839551 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10800, while the sum is 34.

The square root of 12839551 is about 3583.2319210456. The cubic root of 12839551 is about 234.1621042974.

The spelling of 12839551 in words is "twelve million, eight hundred thirty-nine thousand, five hundred fifty-one".