1345343047 has 2 divisors, whose sum is σ = 1345343048. Its totient is φ = 1345343046.

The previous prime is 1345343033. The next prime is 1345343063. The reversal of 1345343047 is 7403435431.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1345343047 - 2²³ = 1336954439 is a prime.

It is a super-2 number, since 2×1345343047² = 3619895828222488418, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1345343017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 672671523 + 672671524.

It is an arithmetic number, because the mean of its divisors is an integer number (672671524).

Almost surely, 2^1345343047 is an apocalyptic number.

1345343047 is a deficient number, since it is larger than the sum of its proper divisors (1).

1345343047 is an equidigital number, since it uses as much as digits as its factorization.

1345343047 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 60480, while the sum is 34.

The square root of 1345343047 is about 36678.9182910292. The cubic root of 1345343047 is about 1103.9371438934.

Adding to 1345343047 its reverse (7403435431), we get a palindrome (8748778478).

The spelling of 1345343047 in words is "one billion, three hundred forty-five million, three hundred forty-three thousand, forty-seven".