13146687293 has 2 divisors, whose sum is σ = 13146687294. Its totient is φ = 13146687292.

The previous prime is 13146687289. The next prime is 13146687319. The reversal of 13146687293 is 39278664131.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12359435929 + 787251364 = 111173^2 + 28058^2 .

It is a cyclic number.

It is not a de Polignac number, because 13146687293 - 2² = 13146687289 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13146687263) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6573343646 + 6573343647.

It is an arithmetic number, because the mean of its divisors is an integer number (6573343647).

Almost surely, 2^13146687293 is an apocalyptic number.

It is an amenable number.

13146687293 is a deficient number, since it is larger than the sum of its proper divisors (1).

13146687293 is an equidigital number, since it uses as much as digits as its factorization.

13146687293 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1306368, while the sum is 50.

The spelling of 13146687293 in words is "thirteen billion, one hundred forty-six million, six hundred eighty-seven thousand, two hundred ninety-three".