1312104439 has 2 divisors, whose sum is σ = 1312104440. Its totient is φ = 1312104438.

The previous prime is 1312104407. The next prime is 1312104463. The reversal of 1312104439 is 9344012131.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1312104439 - 2⁵ = 1312104407 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1312104139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 656052219 + 656052220.

It is an arithmetic number, because the mean of its divisors is an integer number (656052220).

Almost surely, 2^1312104439 is an apocalyptic number.

1312104439 is a deficient number, since it is larger than the sum of its proper divisors (1).

1312104439 is an equidigital number, since it uses as much as digits as its factorization.

1312104439 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2592, while the sum is 28.

The square root of 1312104439 is about 36222.9821936295. The cubic root of 1312104439 is about 1094.7697823667.

The spelling of 1312104439 in words is "one billion, three hundred twelve million, one hundred four thousand, four hundred thirty-nine".