1430749 has 2 divisors, whose sum is σ = 1430750. Its totient is φ = 1430748.

The previous prime is 1430729. The next prime is 1430783. The reversal of 1430749 is 9470341.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1092025 + 338724 = 1045^2 + 582^2 .

It is a cyclic number.

It is not a de Polignac number, because 1430749 - 2⁵ = 1430717 is a prime.

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

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1430729) 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, 715374 + 715375.

It is an arithmetic number, because the mean of its divisors is an integer number (715375).

2^1430749 is an apocalyptic number.

It is an amenable number.

1430749 is a deficient number, since it is larger than the sum of its proper divisors (1).

1430749 is an equidigital number, since it uses as much as digits as its factorization.

1430749 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3024, while the sum is 28.

The square root of 1430749 is about 1196.1392059455. The cubic root of 1430749 is about 112.6819836479.

The spelling of 1430749 in words is "one million, four hundred thirty thousand, seven hundred forty-nine".