13815226 has 8 divisors (see below), whose sum is σ = 21623904. Its totient is φ = 6607260.

The previous prime is 13815209. The next prime is 13815229. The reversal of 13815226 is 62251831.

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

It is a junction number, because it is equal to n+sod(n) for n = 13815194 and 13815203.

It is not an unprimeable number, because it can be changed into a prime (13815229) 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, 150120 + ... + 150211.

It is an arithmetic number, because the mean of its divisors is an integer number (2702988).

Almost surely, 2^13815226 is an apocalyptic number.

13815226 is a deficient number, since it is larger than the sum of its proper divisors (7808678).

13815226 is a wasteful number, since it uses less digits than its factorization.

13815226 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 300356.

The product of its digits is 2880, while the sum is 28.

The square root of 13815226 is about 3716.8839099439. The cubic root of 13815226 is about 239.9492137910.

It can be divided in two parts, 13815 and 226, that added together give a palindrome (14041).

The spelling of 13815226 in words is "thirteen million, eight hundred fifteen thousand, two hundred twenty-six".