1303164553 has 2 divisors, whose sum is σ = 1303164554. Its totient is φ = 1303164552.

The previous prime is 1303164497. The next prime is 1303164559. The reversal of 1303164553 is 3554613031.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 900480064 + 402684489 = 30008^2 + 20067^2 .

It is an emirp because it is prime and its reverse (3554613031) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1303164553 is a prime.

It is not a weakly prime, because it can be changed into another prime (1303164559) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 651582276 + 651582277.

It is an arithmetic number, because the mean of its divisors is an integer number (651582277).

Almost surely, 2^1303164553 is an apocalyptic number.

It is an amenable number.

1303164553 is a deficient number, since it is larger than the sum of its proper divisors (1).

1303164553 is an equidigital number, since it uses as much as digits as its factorization.

1303164553 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16200, while the sum is 31.

The square root of 1303164553 is about 36099.3705346783. The cubic root of 1303164553 is about 1092.2777476596.

Adding to 1303164553 its reverse (3554613031), we get a palindrome (4857777584).

The spelling of 1303164553 in words is "one billion, three hundred three million, one hundred sixty-four thousand, five hundred fifty-three".