318235093 has 4 divisors (see below), whose sum is σ = 347165568. Its totient is φ = 289304620.

The previous prime is 318235091. The next prime is 318235097. The reversal of 318235093 is 390532813.

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, and also an emirpimes, since its reverse is a distinct semiprime: 390532813 = 11 ⋅35502983.

It is not a de Polignac number, because 318235093 - 2¹ = 318235091 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 (318235091) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14465221 + ... + 14465242.

It is an arithmetic number, because the mean of its divisors is an integer number (86791392).

Almost surely, 2^318235093 is an apocalyptic number.

It is an amenable number.

318235093 is a deficient number, since it is larger than the sum of its proper divisors (28930475).

318235093 is a wasteful number, since it uses less digits than its factorization.

318235093 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28930474.

The product of its (nonzero) digits is 19440, while the sum is 34.

The square root of 318235093 is about 17839.1449626937. The cubic root of 318235093 is about 682.7305812069.

The spelling of 318235093 in words is "three hundred eighteen million, two hundred thirty-five thousand, ninety-three".