1317279652 has 96 divisors (see below), whose sum is σ = 2765952000. Its totient is φ = 543283200.

The previous prime is 1317279631. The next prime is 1317279659. The reversal of 1317279652 is 2569727131.

It is a super-2 number, since 2×1317279652² = 3470451363146482208, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1317279599 and 1317279608.

It is not an unprimeable number, because it can be changed into a prime (1317279659) 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 31 ways as a sum of consecutive naturals, for example, 1255224 + ... + 1256272.

It is an arithmetic number, because the mean of its divisors is an integer number (28812000).

Almost surely, 2^1317279652 is an apocalyptic number.

It is an amenable number.

1317279652 is an abundant number, since it is smaller than the sum of its proper divisors (1448672348).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1317279652 is a wasteful number, since it uses less digits than its factorization.

1317279652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1157 (or 1155 counting only the distinct ones).

The product of its digits is 158760, while the sum is 43.

The square root of 1317279652 is about 36294.3473835803. The cubic root of 1317279652 is about 1096.2072274522.

The spelling of 1317279652 in words is "one billion, three hundred seventeen million, two hundred seventy-nine thousand, six hundred fifty-two".