13531534 has 8 divisors (see below), whose sum is σ = 21365640. Its totient is φ = 6409656.

The previous prime is 13531523. The next prime is 13531547. The reversal of 13531534 is 43513531.

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

It is a junction number, because it is equal to n+sod(n) for n = 13531499 and 13531508.

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, 178009 + ... + 178084.

It is an arithmetic number, because the mean of its divisors is an integer number (2670705).

Almost surely, 2^13531534 is an apocalyptic number.

13531534 is a deficient number, since it is larger than the sum of its proper divisors (7834106).

13531534 is a wasteful number, since it uses less digits than its factorization.

13531534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 356114.

The product of its digits is 2700, while the sum is 25.

The square root of 13531534 is about 3678.5233450394. The cubic root of 13531534 is about 238.2954103135.

The spelling of 13531534 in words is "thirteen million, five hundred thirty-one thousand, five hundred thirty-four".