1313154439 has 2 divisors, whose sum is σ = 1313154440. Its totient is φ = 1313154438.

The previous prime is 1313154413. The next prime is 1313154461. The reversal of 1313154439 is 9344513131.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1313154439 - 2⁵ = 1313154407 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1313154499) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 656577219 + 656577220.

It is an arithmetic number, because the mean of its divisors is an integer number (656577220).

Almost surely, 2^1313154439 is an apocalyptic number.

1313154439 is a deficient number, since it is larger than the sum of its proper divisors (1).

1313154439 is an equidigital number, since it uses as much as digits as its factorization.

1313154439 is an evil number, because the sum of its binary digits is even.

The product of its digits is 19440, while the sum is 34.

The square root of 1313154439 is about 36237.4728561471. The cubic root of 1313154439 is about 1095.0617311236.

The spelling of 1313154439 in words is "one billion, three hundred thirteen million, one hundred fifty-four thousand, four hundred thirty-nine".