1354305409 has 2 divisors, whose sum is σ = 1354305410. Its totient is φ = 1354305408.

The previous prime is 1354305397. The next prime is 1354305419. The reversal of 1354305409 is 9045034531.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1080568384 + 273737025 = 32872^2 + 16545^2 .

It is a cyclic number.

It is not a de Polignac number, because 1354305409 - 2⁵ = 1354305377 is a prime.

It is not a weakly prime, because it can be changed into another prime (1354305419) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 677152704 + 677152705.

It is an arithmetic number, because the mean of its divisors is an integer number (677152705).

Almost surely, 2^1354305409 is an apocalyptic number.

It is an amenable number.

1354305409 is a deficient number, since it is larger than the sum of its proper divisors (1).

1354305409 is an equidigital number, since it uses as much as digits as its factorization.

1354305409 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 32400, while the sum is 34.

The square root of 1354305409 is about 36800.8886985084. Note that the first 3 decimals coincide. The cubic root of 1354305409 is about 1106.3831111214.

The spelling of 1354305409 in words is "one billion, three hundred fifty-four million, three hundred five thousand, four hundred nine".