1343783506 has 16 divisors (see below), whose sum is σ = 2171424024. Its totient is φ = 620008704.

The previous prime is 1343783503. The next prime is 1343783521. The reversal of 1343783506 is 6053873431.

It can be written as a sum of positive squares in 4 ways, for example, as 627953481 + 715830025 = 25059^2 + 26755^2 .

It is a super-2 number, since 2×1343783506² = 3611508221995304072, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1343783503) 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, 101866 + ... + 114298.

Almost surely, 2^1343783506 is an apocalyptic number.

1343783506 is a deficient number, since it is larger than the sum of its proper divisors (827640518).

1343783506 is a wasteful number, since it uses less digits than its factorization.

1343783506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16605.

The product of its (nonzero) digits is 181440, while the sum is 40.

The square root of 1343783506 is about 36657.6527617359. The cubic root of 1343783506 is about 1103.5104123576.

The spelling of 1343783506 in words is "one billion, three hundred forty-three million, seven hundred eighty-three thousand, five hundred six".