1304125253 has 4 divisors (see below), whose sum is σ = 1335933228. Its totient is φ = 1272317280.

The previous prime is 1304125247. The next prime is 1304125289. The reversal of 1304125253 is 3525214031.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3525214031 = 827 ⋅4262653.

It can be written as a sum of positive squares in 2 ways, for example, as 548590084 + 755535169 = 23422^2 + 27487^2 .

It is a cyclic number.

It is not a de Polignac number, because 1304125253 - 2⁶ = 1304125189 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1304125243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15903926 + ... + 15904007.

It is an arithmetic number, because the mean of its divisors is an integer number (333983307).

Almost surely, 2^1304125253 is an apocalyptic number.

It is an amenable number.

1304125253 is a deficient number, since it is larger than the sum of its proper divisors (31807975).

1304125253 is an equidigital number, since it uses as much as digits as its factorization.

1304125253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31807974.

The product of its (nonzero) digits is 3600, while the sum is 26.

The square root of 1304125253 is about 36112.6744094092. The cubic root of 1304125253 is about 1092.5460927618.

Adding to 1304125253 its reverse (3525214031), we get a palindrome (4829339284).

The spelling of 1304125253 in words is "one billion, three hundred four million, one hundred twenty-five thousand, two hundred fifty-three".