1346131243 has 2 divisors, whose sum is σ = 1346131244. Its totient is φ = 1346131242.

The previous prime is 1346131207. The next prime is 1346131273. The reversal of 1346131243 is 3421316431.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1346131243 is a prime.

It is not a weakly prime, because it can be changed into another prime (1346131273) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 673065621 + 673065622.

It is an arithmetic number, because the mean of its divisors is an integer number (673065622).

Almost surely, 2^1346131243 is an apocalyptic number.

1346131243 is a deficient number, since it is larger than the sum of its proper divisors (1).

1346131243 is an equidigital number, since it uses as much as digits as its factorization.

1346131243 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5184, while the sum is 28.

The square root of 1346131243 is about 36689.6612549094. The cubic root of 1346131243 is about 1104.1526896540.

Adding to 1346131243 its reverse (3421316431), we get a palindrome (4767447674).

The spelling of 1346131243 in words is "one billion, three hundred forty-six million, one hundred thirty-one thousand, two hundred forty-three".