1303264553 has 8 divisors (see below), whose sum is σ = 1348941000. Its totient is φ = 1257637248.

The previous prime is 1303264519. The next prime is 1303264559. The reversal of 1303264553 is 3554623031.

It can be written as a sum of positive squares in 4 ways, for example, as 763306384 + 539958169 = 27628^2 + 23237^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 1303264553 - 2²⁶ = 1236155689 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1303264559) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 46523 + ... + 69071.

It is an arithmetic number, because the mean of its divisors is an integer number (168617625).

Almost surely, 2^1303264553 is an apocalyptic number.

It is an amenable number.

1303264553 is a deficient number, since it is larger than the sum of its proper divisors (45676447).

1303264553 is a wasteful number, since it uses less digits than its factorization.

1303264553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24571.

The product of its (nonzero) digits is 32400, while the sum is 32.

The square root of 1303264553 is about 36100.7555738104. The cubic root of 1303264553 is about 1092.3056860554.

Adding to 1303264553 its reverse (3554623031), we get a palindrome (4857887584).

The spelling of 1303264553 in words is "one billion, three hundred three million, two hundred sixty-four thousand, five hundred fifty-three".