318300145 has 8 divisors (see below), whose sum is σ = 382239720. Its totient is φ = 254453760.

The previous prime is 318300137. The next prime is 318300209. The reversal of 318300145 is 541003813.

It can be written as a sum of positive squares in 4 ways, for example, as 28483569 + 289816576 = 5337^2 + 17024^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 318300145 - 2³ = 318300137 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15546 + ... + 29635.

It is an arithmetic number, because the mean of its divisors is an integer number (47779965).

Almost surely, 2^318300145 is an apocalyptic number.

It is an amenable number.

318300145 is a deficient number, since it is larger than the sum of its proper divisors (63939575).

318300145 is a wasteful number, since it uses less digits than its factorization.

318300145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46595.

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 318300145 is about 17840.9681631911. The cubic root of 318300145 is about 682.7770981424. Note that the first 3 decimals are identical.

Adding to 318300145 its reverse (541003813), we get a palindrome (859303958).

The spelling of 318300145 in words is "three hundred eighteen million, three hundred thousand, one hundred forty-five".