3031213 has 4 divisors (see below), whose sum is σ = 3042208. Its totient is φ = 3020220.

The previous prime is 3031201. The next prime is 3031247. The reversal of 3031213 is 3121303.

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 a de Polignac number, because none of the positive numbers 2^k-3031213 is a prime.

It is a Duffinian number.

3031213 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 3031193 and 3031202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3031813) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5073 + ... + 5638.

It is an arithmetic number, because the mean of its divisors is an integer number (760552).

Almost surely, 2^3031213 is an apocalyptic number.

It is an amenable number.

3031213 is a deficient number, since it is larger than the sum of its proper divisors (10995).

3031213 is a wasteful number, since it uses less digits than its factorization.

3031213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10994.

The product of its (nonzero) digits is 54, while the sum is 13.

The square root of 3031213 is about 1741.0379088348. The cubic root of 3031213 is about 144.7234204565.

Adding to 3031213 its reverse (3121303), we get a palindrome (6152516).

The spelling of 3031213 in words is "three million, thirty-one thousand, two hundred thirteen".