13863542 has 16 divisors (see below), whose sum is σ = 25926912. Its totient is φ = 5401320.

The previous prime is 13863539. The next prime is 13863569. The reversal of 13863542 is 24536831.

It is a junction number, because it is equal to n+sod(n) for n = 13863499 and 13863508.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44858 + ... + 45165.

It is an arithmetic number, because the mean of its divisors is an integer number (1620432).

Almost surely, 2^13863542 is an apocalyptic number.

13863542 is a deficient number, since it is larger than the sum of its proper divisors (12063370).

13863542 is a wasteful number, since it uses less digits than its factorization.

13863542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90043.

The product of its digits is 17280, while the sum is 32.

The square root of 13863542 is about 3723.3777675654. The cubic root of 13863542 is about 240.2286131828.

Subtracting 13863542 from its reverse (24536831), we obtain a square (10673289 = 3267²).

The spelling of 13863542 in words is "thirteen million, eight hundred sixty-three thousand, five hundred forty-two".