1317540000 has 240 divisors, whose sum is σ = 4940768448. Its totient is φ = 301056000.

The previous prime is 1317539983. The next prime is 1317540013. The reversal of 1317540000 is 457131.

It is a tau number, because it is divible by the number of its divisors (240).

It is a Harshad number since it is a multiple of its sum of digits (21).

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 418432 + ... + 421568.

Almost surely, 2^1317540000 is an apocalyptic number.

1317540000 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 1317540000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2470384224).

1317540000 is an abundant number, since it is smaller than the sum of its proper divisors (3623228448).

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

1317540000 is an equidigital number, since it uses as much as digits as its factorization.

1317540000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3177 (or 3154 counting only the distinct ones).

The product of its (nonzero) digits is 420, while the sum is 21.

The square root of 1317540000 is about 36297.9338254948. The cubic root of 1317540000 is about 1096.2794410628.

Adding to 1317540000 its reverse (457131), we get a palindrome (1317997131).

The spelling of 1317540000 in words is "one billion, three hundred seventeen million, five hundred forty thousand".