13558037149 has 4 divisors (see below), whose sum is σ = 14355568764. Its totient is φ = 12760505536.

The previous prime is 13558037131. The next prime is 13558037159. The reversal of 13558037149 is 94173085531.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3683640249 + 9874396900 = 60693^2 + 99370^2 .

It is a cyclic number.

It is not a de Polignac number, because 13558037149 - 2¹⁷ = 13557906077 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13558037099 and 13558037108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13558037159) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 398765782 + ... + 398765815.

It is an arithmetic number, because the mean of its divisors is an integer number (3588892191).

Almost surely, 2^13558037149 is an apocalyptic number.

It is an amenable number.

13558037149 is a deficient number, since it is larger than the sum of its proper divisors (797531615).

13558037149 is an equidigital number, since it uses as much as digits as its factorization.

13558037149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 797531614.

The product of its (nonzero) digits is 453600, while the sum is 46.

The spelling of 13558037149 in words is "thirteen billion, five hundred fifty-eight million, thirty-seven thousand, one hundred forty-nine".