13140226 has 16 divisors (see below), whose sum is σ = 21661920. Its totient is φ = 5928480.

The previous prime is 13140221. The next prime is 13140271. The reversal of 13140226 is 62204131.

It is not an unprimeable number, because it can be changed into a prime (13140221) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 910 + ... + 5206.

It is an arithmetic number, because the mean of its divisors is an integer number (1353870).

Almost surely, 2^13140226 is an apocalyptic number.

13140226 is a deficient number, since it is larger than the sum of its proper divisors (8521694).

13140226 is a wasteful number, since it uses less digits than its factorization.

13140226 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4449.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 13140226 is about 3624.9449650995. The cubic root of 13140226 is about 235.9758785075.

Adding to 13140226 its reverse (62204131), we get a palindrome (75344357).

It can be divided in two parts, 13140 and 226, that added together give a triangular number (13366 = T₁₆₃).

The spelling of 13140226 in words is "thirteen million, one hundred forty thousand, two hundred twenty-six".