1343220005 has 8 divisors (see below), whose sum is σ = 1620770424. Its totient is φ = 1068638400.

The previous prime is 1343220001. The next prime is 1343220037. The reversal of 1343220005 is 5000223431.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 33431524 + 1309788481 = 5782^2 + 36191^2 .

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

It is not a de Polignac number, because 1343220005 - 2² = 1343220001 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 (1343220001) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 741206 + ... + 743015.

It is an arithmetic number, because the mean of its divisors is an integer number (202596303).

Almost surely, 2^1343220005 is an apocalyptic number.

It is an amenable number.

1343220005 is a deficient number, since it is larger than the sum of its proper divisors (277550419).

1343220005 is a wasteful number, since it uses less digits than its factorization.

1343220005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1484407.

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 1343220005 is about 36649.9659617850. The cubic root of 1343220005 is about 1103.3561424281.

Adding to 1343220005 its reverse (5000223431), we get a palindrome (6343443436).

The spelling of 1343220005 in words is "one billion, three hundred forty-three million, two hundred twenty thousand, five".