13961048149 has 2 divisors, whose sum is σ = 13961048150. Its totient is φ = 13961048148.

The previous prime is 13961048147. The next prime is 13961048173. The reversal of 13961048149 is 94184016931.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12538400625 + 1422647524 = 111975^2 + 37718^2 .

It is an emirp because it is prime and its reverse (94184016931) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 13961048149 - 2¹ = 13961048147 is a prime.

Together with 13961048147, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 13961048099 and 13961048108.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13961048147) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6980524074 + 6980524075.

It is an arithmetic number, because the mean of its divisors is an integer number (6980524075).

Almost surely, 2^13961048149 is an apocalyptic number.

It is an amenable number.

13961048149 is a deficient number, since it is larger than the sum of its proper divisors (1).

13961048149 is an equidigital number, since it uses as much as digits as its factorization.

13961048149 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 186624, while the sum is 46.

The spelling of 13961048149 in words is "thirteen billion, nine hundred sixty-one million, forty-eight thousand, one hundred forty-nine".