13531131501 has 8 divisors (see below), whose sum is σ = 18046374720. Its totient is φ = 9018321312.

The previous prime is 13531131491. The next prime is 13531131517. The reversal of 13531131501 is 10513113531.

It is a happy number.

13531131501 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 13531131501 - 2¹⁰ = 13531130477 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13531141501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 595240 + ... + 617553.

It is an arithmetic number, because the mean of its divisors is an integer number (2255796840).

Almost surely, 2^13531131501 is an apocalyptic number.

It is an amenable number.

13531131501 is a deficient number, since it is larger than the sum of its proper divisors (4515243219).

13531131501 is a wasteful number, since it uses less digits than its factorization.

13531131501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1216515.

The product of its (nonzero) digits is 675, while the sum is 24.

The spelling of 13531131501 in words is "thirteen billion, five hundred thirty-one million, one hundred thirty-one thousand, five hundred one".