1354092809 has 2 divisors, whose sum is σ = 1354092810. Its totient is φ = 1354092808.

The previous prime is 1354092767. The next prime is 1354092827. The reversal of 1354092809 is 9082904531.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1006158400 + 347934409 = 31720^2 + 18653^2 .

It is an emirp because it is prime and its reverse (9082904531) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1354092809 - 2²⁴ = 1337315593 is a prime.

It is not a weakly prime, because it can be changed into another prime (1354002809) 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, 677046404 + 677046405.

It is an arithmetic number, because the mean of its divisors is an integer number (677046405).

Almost surely, 2^1354092809 is an apocalyptic number.

It is an amenable number.

1354092809 is a deficient number, since it is larger than the sum of its proper divisors (1).

1354092809 is an equidigital number, since it uses as much as digits as its factorization.

1354092809 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 77760, while the sum is 41.

The square root of 1354092809 is about 36798.0000679385. Note that the first 4 decimals coincide. The cubic root of 1354092809 is about 1106.3252144419.

The spelling of 1354092809 in words is "one billion, three hundred fifty-four million, ninety-two thousand, eight hundred nine".