1018213 has 4 divisors (see below), whose sum is σ = 1163680. Its totient is φ = 872748.

The previous prime is 1018207. The next prime is 1018217. The reversal of 1018213 is 3128101.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1018213 - 2¹⁷ = 887141 is a prime.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1018217) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 72723 + ... + 72736.

It is an arithmetic number, because the mean of its divisors is an integer number (290920).

2^1018213 is an apocalyptic number.

It is an amenable number.

1018213 is a deficient number, since it is larger than the sum of its proper divisors (145467).

1018213 is an equidigital number, since it uses as much as digits as its factorization.

1018213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145466.

The product of its (nonzero) digits is 48, while the sum is 16.

The square root of 1018213 is about 1009.0654091782. The cubic root of 1018213 is about 100.6034511422.

The spelling of 1018213 in words is "one million, eighteen thousand, two hundred thirteen".