13872118 has 8 divisors (see below), whose sum is σ = 22408848. Its totient is φ = 6402504.

The previous prime is 13872113. The next prime is 13872137. The reversal of 13872118 is 81127831.

It is a happy number.

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

It is a self number, because there is not a number n which added to its sum of digits gives 13872118.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13872113) 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, 266746 + ... + 266797.

It is an arithmetic number, because the mean of its divisors is an integer number (2801106).

Almost surely, 2^13872118 is an apocalyptic number.

13872118 is a deficient number, since it is larger than the sum of its proper divisors (8536730).

13872118 is a wasteful number, since it uses less digits than its factorization.

13872118 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 533558.

The product of its digits is 2688, while the sum is 31.

The square root of 13872118 is about 3724.5292319970. The cubic root of 13872118 is about 240.2781381867.

Adding to 13872118 its reverse (81127831), we get a palindrome (94999949).

The spelling of 13872118 in words is "thirteen million, eight hundred seventy-two thousand, one hundred eighteen".