13544431151 has 4 divisors (see below), whose sum is σ = 13545776904. Its totient is φ = 13543085400.

The previous prime is 13544431141. The next prime is 13544431193. The reversal of 13544431151 is 15113444531.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 15113444531 = 19 ⋅795444449.

It is a cyclic number.

It is not a de Polignac number, because 13544431151 - 2¹⁸ = 13544169007 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13544431141) 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, 657665 + ... + 677946.

It is an arithmetic number, because the mean of its divisors is an integer number (3386444226).

Almost surely, 2^13544431151 is an apocalyptic number.

13544431151 is a deficient number, since it is larger than the sum of its proper divisors (1345753).

13544431151 is a wasteful number, since it uses less digits than its factorization.

13544431151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1345752.

The product of its digits is 14400, while the sum is 32.

Adding to 13544431151 its reverse (15113444531), we get a palindrome (28657875682).

The spelling of 13544431151 in words is "thirteen billion, five hundred forty-four million, four hundred thirty-one thousand, one hundred fifty-one".