1345020213 has 4 divisors (see below), whose sum is σ = 1793360288. Its totient is φ = 896680140.

The previous prime is 1345020199. The next prime is 1345020217. The reversal of 1345020213 is 3120205431.

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 not a de Polignac number, because 1345020213 - 2⁵ = 1345020181 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1345020213.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1345020217) 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 3 ways as a sum of consecutive naturals, for example, 224170033 + ... + 224170038.

It is an arithmetic number, because the mean of its divisors is an integer number (448340072).

Almost surely, 2^1345020213 is an apocalyptic number.

It is an amenable number.

1345020213 is a deficient number, since it is larger than the sum of its proper divisors (448340075).

1345020213 is an equidigital number, since it uses as much as digits as its factorization.

1345020213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 448340074.

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 1345020213 is about 36674.5172156363. The cubic root of 1345020213 is about 1103.8488350775.

Adding to 1345020213 its reverse (3120205431), we get a palindrome (4465225644).

The spelling of 1345020213 in words is "one billion, three hundred forty-five million, twenty thousand, two hundred thirteen".