315018005 has 16 divisors (see below), whose sum is σ = 415221120. Its totient is φ = 228368448.

The previous prime is 315017993. The next prime is 315018023. The reversal of 315018005 is 500810513.

It is a de Polignac number, because none of the positive numbers 2^k-315018005 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 69902 + ... + 74271.

It is an arithmetic number, because the mean of its divisors is an integer number (25951320).

Almost surely, 2^315018005 is an apocalyptic number.

It is an amenable number.

315018005 is a deficient number, since it is larger than the sum of its proper divisors (100203115).

315018005 is a wasteful number, since it uses less digits than its factorization.

315018005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144220.

The product of its (nonzero) digits is 600, while the sum is 23.

The square root of 315018005 is about 17748.7465754627. The cubic root of 315018005 is about 680.4221751239.

Adding to 315018005 its reverse (500810513), we get a palindrome (815828518).

The spelling of 315018005 in words is "three hundred fifteen million, eighteen thousand, five".