1317167280 has 360 divisors, whose sum is σ = 5240695824. Its totient is φ = 294497280.

The previous prime is 1317167263. The next prime is 1317167287. The reversal of 1317167280 is 827617131.

1317167280 is a `hidden beast` number, since 1 + 317 + 1 + 67 + 280 = 666.

It is a tau number, because it is divible by the number of its divisors (360).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (1317167287) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 1131979 + ... + 1133141.

Almost surely, 2^1317167280 is an apocalyptic number.

1317167280 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1317167280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2620347912).

1317167280 is an abundant number, since it is smaller than the sum of its proper divisors (3923528544).

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

1317167280 is a wasteful number, since it uses less digits than its factorization.

1317167280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1217 (or 1197 counting only the distinct ones).

The product of its (nonzero) digits is 14112, while the sum is 36.

The square root of 1317167280 is about 36292.7992858087. The cubic root of 1317167280 is about 1096.1760555085.

The spelling of 1317167280 in words is "one billion, three hundred seventeen million, one hundred sixty-seven thousand, two hundred eighty".