318512042 has 16 divisors (see below), whose sum is σ = 499430400. Its totient is φ = 152165520.

The previous prime is 318512041. The next prime is 318512071. The reversal of 318512042 is 240215813.

It is not an unprimeable number, because it can be changed into a prime (318512041) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27617 + ... + 37412.

It is an arithmetic number, because the mean of its divisors is an integer number (31214400).

Almost surely, 2^318512042 is an apocalyptic number.

318512042 is a deficient number, since it is larger than the sum of its proper divisors (180918358).

318512042 is a wasteful number, since it uses less digits than its factorization.

318512042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65141.

The product of its (nonzero) digits is 1920, while the sum is 26.

The square root of 318512042 is about 17846.9056701715. The cubic root of 318512042 is about 682.9285760562.

Adding to 318512042 its reverse (240215813), we get a palindrome (558727855).

The spelling of 318512042 in words is "three hundred eighteen million, five hundred twelve thousand, forty-two".