1343247543 has 40 divisors (see below), whose sum is σ = 2197468416. Its totient is φ = 810939600.

The previous prime is 1343247533. The next prime is 1343247547. The reversal of 1343247543 is 3457423431.

It is not a de Polignac number, because 1343247543 - 2⁴ = 1343247527 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1343247498 and 1343247507.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1343247547) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 238680 + ... + 244242.

Almost surely, 2^1343247543 is an apocalyptic number.

1343247543 is a deficient number, since it is larger than the sum of its proper divisors (854220873).

1343247543 is a wasteful number, since it uses less digits than its factorization.

1343247543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5857 (or 5848 counting only the distinct ones).

The product of its digits is 120960, while the sum is 36.

The square root of 1343247543 is about 36650.3416491579. The cubic root of 1343247543 is about 1103.3636825217.

The spelling of 1343247543 in words is "one billion, three hundred forty-three million, two hundred forty-seven thousand, five hundred forty-three".