318401 has 4 divisors (see below), whose sum is σ = 328704. Its totient is φ = 308100.

The previous prime is 318377. The next prime is 318403. The reversal of 318401 is 104813.

It is a happy number.

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: 104813 = 281 ⋅373.

It is a cyclic number.

It is not a de Polignac number, because 318401 - 2⁶ = 318337 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 318401.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 318401.

It is not an unprimeable number, because it can be changed into a prime (318403) 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, 5105 + ... + 5166.

It is an arithmetic number, because the mean of its divisors is an integer number (82176).

2³¹⁸⁴⁰¹ is an apocalyptic number.

318401 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

It is an amenable number.

318401 is a deficient number, since it is larger than the sum of its proper divisors (10303).

318401 is a wasteful number, since it uses less digits than its factorization.

318401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10302.

The product of its (nonzero) digits is 96, while the sum is 17.

The square root of 318401 is about 564.2703252874. The cubic root of 318401 is about 68.2849204312.

The spelling of 318401 in words is "three hundred eighteen thousand, four hundred one".