13149438242 has 8 divisors (see below), whose sum is σ = 19724651436. Its totient is φ = 6574554432.

The previous prime is 13149438223. The next prime is 13149438283. The reversal of 13149438242 is 24283494131.

It is a Cunningham number, because it is equal to 114671²+1.

It can be written as a sum of positive squares in 2 ways, for example, as 13149438241 + 1 = 114671^2 + 1^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 13149438242.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 87638 + ... + 184334.

Almost surely, 2^13149438242 is an apocalyptic number.

13149438242 is a deficient number, since it is larger than the sum of its proper divisors (6575213194).

13149438242 is an equidigital number, since it uses as much as digits as its factorization.

13149438242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 164692.

The product of its digits is 165888, while the sum is 41.

The spelling of 13149438242 in words is "thirteen billion, one hundred forty-nine million, four hundred thirty-eight thousand, two hundred forty-two".