1317210533 has 4 divisors (see below), whose sum is σ = 1319526060. Its totient is φ = 1314895008.

The previous prime is 1317210527. The next prime is 1317210547. The reversal of 1317210533 is 3350127131.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 189392644 + 1127817889 = 13762^2 + 33583^2 .

It is a cyclic number.

It is not a de Polignac number, because 1317210533 - 2⁶ = 1317210469 is a prime.

It is a super-2 number, since 2×1317210533² = 3470087176492288178, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1317210523) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1156910 + ... + 1158047.

It is an arithmetic number, because the mean of its divisors is an integer number (329881515).

Almost surely, 2^1317210533 is an apocalyptic number.

It is an amenable number.

1317210533 is a deficient number, since it is larger than the sum of its proper divisors (2315527).

1317210533 is an equidigital number, since it uses as much as digits as its factorization.

1317210533 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2315526.

The product of its (nonzero) digits is 1890, while the sum is 26.

The square root of 1317210533 is about 36293.3951704714. The cubic root of 1317210533 is about 1096.1880540817.

Adding to 1317210533 its reverse (3350127131), we get a palindrome (4667337664).

The spelling of 1317210533 in words is "one billion, three hundred seventeen million, two hundred ten thousand, five hundred thirty-three".