1354307309 has 2 divisors, whose sum is σ = 1354307310. Its totient is φ = 1354307308.

The previous prime is 1354307287. The next prime is 1354307351. The reversal of 1354307309 is 9037034531.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1067851684 + 286455625 = 32678^2 + 16925^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1354307309 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1354307369) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 677153654 + 677153655.

It is an arithmetic number, because the mean of its divisors is an integer number (677153655).

Almost surely, 2^1354307309 is an apocalyptic number.

It is an amenable number.

1354307309 is a deficient number, since it is larger than the sum of its proper divisors (1).

1354307309 is an equidigital number, since it uses as much as digits as its factorization.

1354307309 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 34020, while the sum is 35.

The square root of 1354307309 is about 36800.9145130933. The cubic root of 1354307309 is about 1106.3836285150.

The spelling of 1354307309 in words is "one billion, three hundred fifty-four million, three hundred seven thousand, three hundred nine".