1253300305 has 4 divisors (see below), whose sum is σ = 1503960372. Its totient is φ = 1002640240.

The previous prime is 1253300303. The next prime is 1253300329. The reversal of 1253300305 is 5030033521.

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: 5030033521 = 1031 ⋅4878791.

It can be written as a sum of positive squares in 2 ways, for example, as 379743169 + 873557136 = 19487^2 + 29556^2 .

It is not a de Polignac number, because 1253300305 - 2¹ = 1253300303 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1253300303) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 125330026 + ... + 125330035.

It is an arithmetic number, because the mean of its divisors is an integer number (375990093).

Almost surely, 2^1253300305 is an apocalyptic number.

It is an amenable number.

1253300305 is a deficient number, since it is larger than the sum of its proper divisors (250660067).

1253300305 is an equidigital number, since it uses as much as digits as its factorization.

1253300305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 250660066.

The product of its (nonzero) digits is 1350, while the sum is 22.

The square root of 1253300305 is about 35401.9816535741. The cubic root of 1253300305 is about 1078.1645507636.

Adding to 1253300305 its reverse (5030033521), we get a palindrome (6283333826).

The spelling of 1253300305 in words is "one billion, two hundred fifty-three million, three hundred thousand, three hundred five".