1294454089 has 2 divisors, whose sum is σ = 1294454090. Its totient is φ = 1294454088.

The previous prime is 1294454087. The next prime is 1294454143. The reversal of 1294454089 is 9804544921.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1287589689 + 6864400 = 35883^2 + 2620^2 .

It is an emirp because it is prime and its reverse (9804544921) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1294454089 - 2¹ = 1294454087 is a prime.

It is a super-2 number, since 2×1294454089² = 3351222777057639842, which contains 22 as substring.

Together with 1294454087, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (1294454081) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 647227044 + 647227045.

It is an arithmetic number, because the mean of its divisors is an integer number (647227045).

Almost surely, 2^1294454089 is an apocalyptic number.

It is an amenable number.

1294454089 is a deficient number, since it is larger than the sum of its proper divisors (1).

1294454089 is an equidigital number, since it uses as much as digits as its factorization.

1294454089 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 414720, while the sum is 46.

The square root of 1294454089 is about 35978.5226072445. The cubic root of 1294454089 is about 1089.8386790967.

The spelling of 1294454089 in words is "one billion, two hundred ninety-four million, four hundred fifty-four thousand, eighty-nine".