13449493139 has 2 divisors, whose sum is σ = 13449493140. Its totient is φ = 13449493138.

The previous prime is 13449493051. The next prime is 13449493177. The reversal of 13449493139 is 93139494431.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (93139494431) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 13449493139 - 2⁸ = 13449492883 is a prime.

It is a super-3 number, since 3×13449493139³ (a number of 31 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (13449496139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6724746569 + 6724746570.

It is an arithmetic number, because the mean of its divisors is an integer number (6724746570).

Almost surely, 2^13449493139 is an apocalyptic number.

13449493139 is a deficient number, since it is larger than the sum of its proper divisors (1).

13449493139 is an equidigital number, since it uses as much as digits as its factorization.

13449493139 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1259712, while the sum is 50.

The spelling of 13449493139 in words is "thirteen billion, four hundred forty-nine million, four hundred ninety-three thousand, one hundred thirty-nine".