318142663 has 4 divisors (see below), whose sum is σ = 318229128. Its totient is φ = 318056200.

The previous prime is 318142651. The next prime is 318142679. The reversal of 318142663 is 366241813.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 318142663 - 2¹³ = 318134471 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (318142603) 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 3 ways as a sum of consecutive naturals, for example, 37456 + ... + 45157.

It is an arithmetic number, because the mean of its divisors is an integer number (79557282).

Almost surely, 2^318142663 is an apocalyptic number.

318142663 is a deficient number, since it is larger than the sum of its proper divisors (86465).

318142663 is an equidigital number, since it uses as much as digits as its factorization.

318142663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86464.

The product of its digits is 20736, while the sum is 34.

The square root of 318142663 is about 17836.5541234847. The cubic root of 318142663 is about 682.6644760962.

The spelling of 318142663 in words is "three hundred eighteen million, one hundred forty-two thousand, six hundred sixty-three".