1303552913 has 4 divisors (see below), whose sum is σ = 1403826228. Its totient is φ = 1203279600.

The previous prime is 1303552907. The next prime is 1303552937. The reversal of 1303552913 is 3192553031.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3192553031 = 5479 ⋅582689.

It can be written as a sum of positive squares in 2 ways, for example, as 174055249 + 1129497664 = 13193^2 + 33608^2 .

It is a cyclic number.

It is not a de Polignac number, because 1303552913 - 2¹² = 1303548817 is a prime.

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 1303552913.

It is not an unprimeable number, because it can be changed into a prime (1303552973) 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, 50136638 + ... + 50136663.

It is an arithmetic number, because the mean of its divisors is an integer number (350956557).

Almost surely, 2^1303552913 is an apocalyptic number.

1303552913 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1303552913 is a deficient number, since it is larger than the sum of its proper divisors (100273315).

1303552913 is a wasteful number, since it uses less digits than its factorization.

1303552913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100273314.

The product of its (nonzero) digits is 12150, while the sum is 32.

The square root of 1303552913 is about 36104.7491751432. The cubic root of 1303552913 is about 1092.3862412118.

The spelling of 1303552913 in words is "one billion, three hundred three million, five hundred fifty-two thousand, nine hundred thirteen".