13531154512 has 10 divisors (see below), whose sum is σ = 26216611898. Its totient is φ = 6765577248.

The previous prime is 13531154503. The next prime is 13531154521. The reversal of 13531154512 is 21545113531.

It is an interprime number because it is at equal distance from previous prime (13531154503) and next prime (13531154521).

It can be written as a sum of positive squares in only one way, i.e., 12259804176 + 1271350336 = 110724^2 + 35656^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 422848563 + ... + 422848594.

Almost surely, 2^13531154512 is an apocalyptic number.

It is an amenable number.

13531154512 is a deficient number, since it is larger than the sum of its proper divisors (12685457386).

13531154512 is an equidigital number, since it uses as much as digits as its factorization.

13531154512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 845697165 (or 845697159 counting only the distinct ones).

The product of its digits is 9000, while the sum is 31.

The spelling of 13531154512 in words is "thirteen billion, five hundred thirty-one million, one hundred fifty-four thousand, five hundred twelve".