13531151015 has 4 divisors (see below), whose sum is σ = 16237381224. Its totient is φ = 10824920808.

The previous prime is 13531150981. The next prime is 13531151027. The reversal of 13531151015 is 51015113531.

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

It is a cyclic number.

It is not a de Polignac number, because 13531151015 - 2³⁰ = 12457409191 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1353115097 + ... + 1353115106.

It is an arithmetic number, because the mean of its divisors is an integer number (4059345306).

Almost surely, 2^13531151015 is an apocalyptic number.

13531151015 is a deficient number, since it is larger than the sum of its proper divisors (2706230209).

13531151015 is an equidigital number, since it uses as much as digits as its factorization.

13531151015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2706230208.

The product of its (nonzero) digits is 1125, while the sum is 26.

Adding to 13531151015 its reverse (51015113531), we get a palindrome (64546264546).

The spelling of 13531151015 in words is "thirteen billion, five hundred thirty-one million, one hundred fifty-one thousand, fifteen".