218427013 has 8 divisors (see below), whose sum is σ = 249728832. Its totient is φ = 187149696.

The previous prime is 218427007. The next prime is 218427017. The reversal of 218427013 is 310724812.

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

It is a cyclic number.

It is not a de Polignac number, because 218427013 - 2¹³ = 218418821 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (218427017) 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 7 ways as a sum of consecutive naturals, for example, 21006 + ... + 29632.

It is an arithmetic number, because the mean of its divisors is an integer number (31216104).

Almost surely, 2^218427013 is an apocalyptic number.

It is an amenable number.

218427013 is a deficient number, since it is larger than the sum of its proper divisors (31301819).

218427013 is an equidigital number, since it uses as much as digits as its factorization.

218427013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12251.

The product of its (nonzero) digits is 2688, while the sum is 28.

The square root of 218427013 is about 14779.2764707884. The cubic root of 218427013 is about 602.2388696394.

The spelling of 218427013 in words is "two hundred eighteen million, four hundred twenty-seven thousand, thirteen".