1294751449 has 2 divisors, whose sum is σ = 1294751450. Its totient is φ = 1294751448.

The previous prime is 1294751417. The next prime is 1294751459. The reversal of 1294751449 is 9441574921.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 650607049 + 644144400 = 25507^2 + 25380^2 .

It is a cyclic number.

It is not a de Polignac number, because 1294751449 - 2⁵ = 1294751417 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1294751399 and 1294751408.

It is not a weakly prime, because it can be changed into another prime (1294751459) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 647375724 + 647375725.

It is an arithmetic number, because the mean of its divisors is an integer number (647375725).

Almost surely, 2^1294751449 is an apocalyptic number.

It is an amenable number.

1294751449 is a deficient number, since it is larger than the sum of its proper divisors (1).

1294751449 is an equidigital number, since it uses as much as digits as its factorization.

1294751449 is an evil number, because the sum of its binary digits is even.

The product of its digits is 362880, while the sum is 46.

The square root of 1294751449 is about 35982.6548353509. The cubic root of 1294751449 is about 1089.9221247284.

The spelling of 1294751449 in words is "one billion, two hundred ninety-four million, seven hundred fifty-one thousand, four hundred forty-nine".