13881236 has 12 divisors (see below), whose sum is σ = 25348512. Its totient is φ = 6638808.

The previous prime is 13881233. The next prime is 13881239. The reversal of 13881236 is 63218831.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (13881233) and next prime (13881239).

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13881233) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 75350 + ... + 75533.

It is an arithmetic number, because the mean of its divisors is an integer number (2112376).

Almost surely, 2^13881236 is an apocalyptic number.

It is an amenable number.

13881236 is a deficient number, since it is larger than the sum of its proper divisors (11467276).

13881236 is a wasteful number, since it uses less digits than its factorization.

13881236 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 150910 (or 150908 counting only the distinct ones).

The product of its digits is 6912, while the sum is 32.

The square root of 13881236 is about 3725.7530782380. The cubic root of 13881236 is about 240.3307707703.

The spelling of 13881236 in words is "thirteen million, eight hundred eighty-one thousand, two hundred thirty-six".