1343142457 has 2 divisors, whose sum is σ = 1343142458. Its totient is φ = 1343142456.

The previous prime is 1343142397. The next prime is 1343142481. The reversal of 1343142457 is 7542413431.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1320522921 + 22619536 = 36339^2 + 4756^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1343142457 is a prime.

It is not a weakly prime, because it can be changed into another prime (1343143457) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 671571228 + 671571229.

It is an arithmetic number, because the mean of its divisors is an integer number (671571229).

Almost surely, 2^1343142457 is an apocalyptic number.

It is an amenable number.

1343142457 is a deficient number, since it is larger than the sum of its proper divisors (1).

1343142457 is an equidigital number, since it uses as much as digits as its factorization.

1343142457 is an evil number, because the sum of its binary digits is even.

The product of its digits is 40320, while the sum is 34.

The square root of 1343142457 is about 36648.9079919170. The cubic root of 1343142457 is about 1103.3349086990.

Adding to 1343142457 its reverse (7542413431), we get a palindrome (8885555888).

The spelling of 1343142457 in words is "one billion, three hundred forty-three million, one hundred forty-two thousand, four hundred fifty-seven".