1354665289 has 2 divisors, whose sum is σ = 1354665290. Its totient is φ = 1354665288.

The previous prime is 1354665259. The next prime is 1354665317. The reversal of 1354665289 is 9825664531.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1236225600 + 118439689 = 35160^2 + 10883^2 .

It is a cyclic number.

It is not a de Polignac number, because 1354665289 - 2²¹ = 1352568137 is a prime.

It is not a weakly prime, because it can be changed into another prime (1354665229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 677332644 + 677332645.

It is an arithmetic number, because the mean of its divisors is an integer number (677332645).

Almost surely, 2^1354665289 is an apocalyptic number.

It is an amenable number.

1354665289 is a deficient number, since it is larger than the sum of its proper divisors (1).

1354665289 is an equidigital number, since it uses as much as digits as its factorization.

1354665289 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1555200, while the sum is 49.

The square root of 1354665289 is about 36805.7779295588. Note that the first 3 decimals coincide. The cubic root of 1354665289 is about 1106.4811022856.

The spelling of 1354665289 in words is "one billion, three hundred fifty-four million, six hundred sixty-five thousand, two hundred eighty-nine".