318497130 has 128 divisors (see below), whose sum is σ = 993484800. Its totient is φ = 71088192.

The previous prime is 318497119. The next prime is 318497161. The reversal of 318497130 is 31794813.

It is a happy number.

318497130 is a `hidden beast` number, since 31 + 8 + 497 + 130 = 666.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 79311 + ... + 83229.

It is an arithmetic number, because the mean of its divisors is an integer number (7761600).

Almost surely, 2^318497130 is an apocalyptic number.

318497130 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 318497130, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (496742400).

318497130 is an abundant number, since it is smaller than the sum of its proper divisors (674987670).

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

318497130 is a wasteful number, since it uses less digits than its factorization.

318497130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3985 (or 3979 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 36.

The square root of 318497130 is about 17846.4878897782. The cubic root of 318497130 is about 682.9179181757.

The spelling of 318497130 in words is "three hundred eighteen million, four hundred ninety-seven thousand, one hundred thirty".