318130140 has 24 divisors (see below), whose sum is σ = 890764560. Its totient is φ = 84834688.

The previous prime is 318130139. The next prime is 318130147. The reversal of 318130140 is 41031813.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (318130147) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 2651025 + ... + 2651144.

It is an arithmetic number, because the mean of its divisors is an integer number (37115190).

Almost surely, 2^318130140 is an apocalyptic number.

318130140 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

318130140 is an abundant number, since it is smaller than the sum of its proper divisors (572634420).

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

318130140 is a wasteful number, since it uses less digits than its factorization.

318130140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5302181 (or 5302179 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 21.

The square root of 318130140 is about 17836.2030712817. The cubic root of 318130140 is about 682.6555187736.

Adding to 318130140 its reverse (41031813), we get a palindrome (359161953).

The spelling of 318130140 in words is "three hundred eighteen million, one hundred thirty thousand, one hundred forty".