1343343561 has 16 divisors (see below), whose sum is σ = 2062629888. Its totient is φ = 761763600.

The previous prime is 1343343517. The next prime is 1343343569. The reversal of 1343343561 is 1653433431.

It is not a de Polignac number, because 1343343561 - 2⁷ = 1343343433 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1343343569) 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 15 ways as a sum of consecutive naturals, for example, 241405 + ... + 246906.

It is an arithmetic number, because the mean of its divisors is an integer number (128914368).

Almost surely, 2^1343343561 is an apocalyptic number.

It is an amenable number.

1343343561 is a deficient number, since it is larger than the sum of its proper divisors (719286327).

1343343561 is a wasteful number, since it uses less digits than its factorization.

1343343561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 488452.

The product of its digits is 38880, while the sum is 33.

The square root of 1343343561 is about 36651.6515453260. The cubic root of 1343343561 is about 1103.3899721038.

Adding to 1343343561 its reverse (1653433431), we get a palindrome (2996776992).

The spelling of 1343343561 in words is "one billion, three hundred forty-three million, three hundred forty-three thousand, five hundred sixty-one".