318740153 has 4 divisors (see below), whose sum is σ = 318814800. Its totient is φ = 318665508.

The previous prime is 318740129. The next prime is 318740159. The reversal of 318740153 is 351047813.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 318740153 - 2²⁸ = 50304697 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (318740159) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 30503 + ... + 39596.

It is an arithmetic number, because the mean of its divisors is an integer number (79703700).

Almost surely, 2^318740153 is an apocalyptic number.

It is an amenable number.

318740153 is a deficient number, since it is larger than the sum of its proper divisors (74647).

318740153 is an equidigital number, since it uses as much as digits as its factorization.

318740153 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74646.

The product of its (nonzero) digits is 10080, while the sum is 32.

The square root of 318740153 is about 17853.2952980675. The cubic root of 318740153 is about 683.0915697321.

Adding to 318740153 its reverse (351047813), we get a palindrome (669787966).

The spelling of 318740153 in words is "three hundred eighteen million, seven hundred forty thousand, one hundred fifty-three".