1303723 has 8 divisors (see below), whose sum is σ = 1396800. Its totient is φ = 1213128.

The previous prime is 1303711. The next prime is 1303739. The reversal of 1303723 is 3273031.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1303723 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1303723.

It is not an unprimeable number, because it can be changed into a prime (1303703) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 540 + ... + 1702.

It is an arithmetic number, because the mean of its divisors is an integer number (174600).

2^1303723 is an apocalyptic number.

1303723 is a deficient number, since it is larger than the sum of its proper divisors (93077).

1303723 is a wasteful number, since it uses less digits than its factorization.

1303723 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1241.

The product of its (nonzero) digits is 378, while the sum is 19.

The square root of 1303723 is about 1141.8069013629. The cubic root of 1303723 is about 109.2433750501.

Adding to 1303723 its reverse (3273031), we get a palindrome (4576754).

The spelling of 1303723 in words is "one million, three hundred three thousand, seven hundred twenty-three".