13916405149 has 2 divisors, whose sum is σ = 13916405150. Its totient is φ = 13916405148.

The previous prime is 13916405141. The next prime is 13916405161. The reversal of 13916405149 is 94150461931.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10767175225 + 3149229924 = 103765^2 + 56118^2 .

It is an emirp because it is prime and its reverse (94150461931) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 13916405149 - 2³ = 13916405141 is a prime.

It is a super-2 number, since 2×13916405149² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13916405141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6958202574 + 6958202575.

It is an arithmetic number, because the mean of its divisors is an integer number (6958202575).

Almost surely, 2^13916405149 is an apocalyptic number.

It is an amenable number.

13916405149 is a deficient number, since it is larger than the sum of its proper divisors (1).

13916405149 is an equidigital number, since it uses as much as digits as its factorization.

13916405149 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 116640, while the sum is 43.

The spelling of 13916405149 in words is "thirteen billion, nine hundred sixteen million, four hundred five thousand, one hundred forty-nine".