1294729 has 2 divisors, whose sum is σ = 1294730. Its totient is φ = 1294728.

The previous prime is 1294723. The next prime is 1294753. The reversal of 1294729 is 9274921.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 990025 + 304704 = 995^2 + 552^2 .

It is a cyclic number.

It is not a de Polignac number, because 1294729 - 2³ = 1294721 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a junction number, because it is equal to n+sod(n) for n = 1294694 and 1294703.

It is not a weakly prime, because it can be changed into another prime (1294721) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 647364 + 647365.

It is an arithmetic number, because the mean of its divisors is an integer number (647365).

2^1294729 is an apocalyptic number.

It is an amenable number.

1294729 is a deficient number, since it is larger than the sum of its proper divisors (1).

1294729 is an equidigital number, since it uses as much as digits as its factorization.

1294729 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 9072, while the sum is 34.

The square root of 1294729 is about 1137.8615908800. The cubic root of 1294729 is about 108.9915825501.

The spelling of 1294729 in words is "one million, two hundred ninety-four thousand, seven hundred twenty-nine".