1294730089 has 2 divisors, whose sum is σ = 1294730090. Its totient is φ = 1294730088.

The previous prime is 1294730083. The next prime is 1294730111. The reversal of 1294730089 is 9800374921.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1125938025 + 168792064 = 33555^2 + 12992^2 .

It is a cyclic number.

It is not a de Polignac number, because 1294730089 - 2¹⁷ = 1294599017 is a prime.

It is not a weakly prime, because it can be changed into another prime (1294730083) 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, 647365044 + 647365045.

It is an arithmetic number, because the mean of its divisors is an integer number (647365045).

Almost surely, 2^1294730089 is an apocalyptic number.

It is an amenable number.

1294730089 is a deficient number, since it is larger than the sum of its proper divisors (1).

1294730089 is an equidigital number, since it uses as much as digits as its factorization.

1294730089 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 108864, while the sum is 43.

The square root of 1294730089 is about 35982.3580244542. The cubic root of 1294730089 is about 1089.9161310775.

The spelling of 1294730089 in words is "one billion, two hundred ninety-four million, seven hundred thirty thousand, eighty-nine".