1304253 has 6 divisors (see below), whose sum is σ = 1883934. Its totient is φ = 869496.

The previous prime is 1304249. The next prime is 1304267. The reversal of 1304253 is 3524031.

It can be written as a sum of positive squares in only one way, i.e., 1258884 + 45369 = 1122^2 + 213^2 .

It is not a de Polignac number, because 1304253 - 2² = 1304249 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1304243) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 72450 + ... + 72467.

It is an arithmetic number, because the mean of its divisors is an integer number (313989).

2^1304253 is an apocalyptic number.

It is an amenable number.

1304253 is a deficient number, since it is larger than the sum of its proper divisors (579681).

1304253 is a wasteful number, since it uses less digits than its factorization.

1304253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144923 (or 144920 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 18.

The square root of 1304253 is about 1142.0389660603. The cubic root of 1304253 is about 109.2581765442.

Adding to 1304253 its reverse (3524031), we get a palindrome (4828284).

The spelling of 1304253 in words is "one million, three hundred four thousand, two hundred fifty-three".