13218070 has 16 divisors (see below), whose sum is σ = 24128928. Its totient is φ = 5212480.

The previous prime is 13218047. The next prime is 13218083. The reversal of 13218070 is 7081231.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 8599 + ... + 10018.

It is an arithmetic number, because the mean of its divisors is an integer number (1508058).

Almost surely, 2^13218070 is an apocalyptic number.

13218070 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13218070 is a deficient number, since it is larger than the sum of its proper divisors (10910858).

13218070 is a wasteful number, since it uses less digits than its factorization.

13218070 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18695.

The product of its (nonzero) digits is 336, while the sum is 22.

The square root of 13218070 is about 3635.6663763332. Note that the first 3 decimals coincide. The cubic root of 13218070 is about 236.4409428410.

The spelling of 13218070 in words is "thirteen million, two hundred eighteen thousand, seventy".