13855012 has 12 divisors (see below), whose sum is σ = 24274096. Its totient is φ = 6919560.

The previous prime is 13855003. The next prime is 13855019. The reversal of 13855012 is 21055831.

It is a happy number.

It is a super-2 number, since 2×13855012² = 383922715040288, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (13855019) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 3823 + ... + 6505.

Almost surely, 2^13855012 is an apocalyptic number.

It is an amenable number.

13855012 is a deficient number, since it is larger than the sum of its proper divisors (10419084).

13855012 is a wasteful number, since it uses less digits than its factorization.

13855012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3978 (or 3976 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 25.

The square root of 13855012 is about 3722.2321260233. The cubic root of 13855012 is about 240.1793335570.

The spelling of 13855012 in words is "thirteen million, eight hundred fifty-five thousand, twelve".