13147806 has 32 divisors (see below), whose sum is σ = 30205440. Its totient is φ = 3737376.

The previous prime is 13147793. The next prime is 13147807. The reversal of 13147806 is 60874131.

It is a happy number.

It is a super-2 number, since 2×13147806² = 345729605227272, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13147807) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8935 + ... + 10301.

It is an arithmetic number, because the mean of its divisors is an integer number (943920).

Almost surely, 2^13147806 is an apocalyptic number.

13147806 is an abundant number, since it is smaller than the sum of its proper divisors (17057634).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13147806 is a wasteful number, since it uses less digits than its factorization.

13147806 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1608.

The product of its (nonzero) digits is 4032, while the sum is 30.

The square root of 13147806 is about 3625.9903474775. The cubic root of 13147806 is about 236.0212443769.

The spelling of 13147806 in words is "thirteen million, one hundred forty-seven thousand, eight hundred six".