1294749089 has 2 divisors, whose sum is σ = 1294749090. Its totient is φ = 1294749088.

The previous prime is 1294749077. The next prime is 1294749101. The reversal of 1294749089 is 9809474921.

It is a balanced prime because it is at equal distance from previous prime (1294749077) and next prime (1294749101).

It can be written as a sum of positive squares in only one way, i.e., 1246654864 + 48094225 = 35308^2 + 6935^2 .

It is an emirp because it is prime and its reverse (9809474921) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1294749089 - 2⁴ = 1294749073 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1294749089.

It is not a weakly prime, because it can be changed into another prime (1294769089) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 647374544 + 647374545.

It is an arithmetic number, because the mean of its divisors is an integer number (647374545).

Almost surely, 2^1294749089 is an apocalyptic number.

It is an amenable number.

1294749089 is a deficient number, since it is larger than the sum of its proper divisors (1).

1294749089 is an equidigital number, since it uses as much as digits as its factorization.

1294749089 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1306368, while the sum is 53.

The square root of 1294749089 is about 35982.6220417579. The cubic root of 1294749089 is about 1089.9214625118.

The spelling of 1294749089 in words is "one billion, two hundred ninety-four million, seven hundred forty-nine thousand, eighty-nine".