13662534 has 16 divisors (see below), whose sum is σ = 27700272. Its totient is φ = 4491648.

The previous prime is 13662527. The next prime is 13662557. The reversal of 13662534 is 43526631.

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 in 7 ways as a sum of consecutive naturals, for example, 15159 + ... + 16034.

It is an arithmetic number, because the mean of its divisors is an integer number (1731267).

Almost surely, 2^13662534 is an apocalyptic number.

13662534 is an abundant number, since it is smaller than the sum of its proper divisors (14037738).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13662534 is a wasteful number, since it uses less digits than its factorization.

13662534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31271.

The product of its digits is 12960, while the sum is 30.

The square root of 13662534 is about 3696.2865148687. The cubic root of 13662534 is about 239.0619284791.

It can be divided in two parts, 13662 and 534, that added together give a triangular number (14196 = T₁₆₈).

The spelling of 13662534 in words is "thirteen million, six hundred sixty-two thousand, five hundred thirty-four".