13481480137 has 4 divisors (see below), whose sum is σ = 13529118160. Its totient is φ = 13433842116.

The previous prime is 13481480081. The next prime is 13481480161. The reversal of 13481480137 is 73108418431.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 13481480137 - 2¹⁹ = 13480955849 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13481480137.

It is not an unprimeable number, because it can be changed into a prime (13481480237) 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, 23818587 + ... + 23819152.

It is an arithmetic number, because the mean of its divisors is an integer number (3382279540).

Almost surely, 2^13481480137 is an apocalyptic number.

It is an amenable number.

13481480137 is a deficient number, since it is larger than the sum of its proper divisors (47638023).

13481480137 is an equidigital number, since it uses as much as digits as its factorization.

13481480137 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47638022.

The product of its (nonzero) digits is 64512, while the sum is 40.

Adding to 13481480137 its reverse (73108418431), we get a palindrome (86589898568).

The spelling of 13481480137 in words is "thirteen billion, four hundred eighty-one million, four hundred eighty thousand, one hundred thirty-seven".