1347355609 has 2 divisors, whose sum is σ = 1347355610. Its totient is φ = 1347355608.

The previous prime is 1347355577. The next prime is 1347355637. The reversal of 1347355609 is 9065537431.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 929030400 + 418325209 = 30480^2 + 20453^2 .

It is a cyclic number.

It is not a de Polignac number, because 1347355609 - 2⁵ = 1347355577 is a prime.

It is not a weakly prime, because it can be changed into another prime (1347355699) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 673677804 + 673677805.

It is an arithmetic number, because the mean of its divisors is an integer number (673677805).

Almost surely, 2^1347355609 is an apocalyptic number.

It is an amenable number.

1347355609 is a deficient number, since it is larger than the sum of its proper divisors (1).

1347355609 is an equidigital number, since it uses as much as digits as its factorization.

1347355609 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 340200, while the sum is 43.

The square root of 1347355609 is about 36706.3428987416. The cubic root of 1347355609 is about 1104.4873468080.

The spelling of 1347355609 in words is "one billion, three hundred forty-seven million, three hundred fifty-five thousand, six hundred nine".