1303729 has 4 divisors (see below), whose sum is σ = 1489984. Its totient is φ = 1117476.

The previous prime is 1303711. The next prime is 1303739. The reversal of 1303729 is 9273031.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1303729 - 2¹⁵ = 1270961 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1303739) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 93117 + ... + 93130.

It is an arithmetic number, because the mean of its divisors is an integer number (372496).

2^1303729 is an apocalyptic number.

It is an amenable number.

1303729 is a deficient number, since it is larger than the sum of its proper divisors (186255).

1303729 is an equidigital number, since it uses as much as digits as its factorization.

1303729 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 186254.

The product of its (nonzero) digits is 1134, while the sum is 25.

The square root of 1303729 is about 1141.8095287744. The cubic root of 1303729 is about 109.2435426367.

The spelling of 1303729 in words is "one million, three hundred three thousand, seven hundred twenty-nine".