320051 has 4 divisors (see below), whose sum is σ = 321504. Its totient is φ = 318600.

The previous prime is 320041. The next prime is 320053. The reversal of 320051 is 150023.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 150023 = 71 ⋅2113.

It is a cyclic number.

It is not a de Polignac number, because 320051 - 2¹⁰ = 319027 is a prime.

It is a Duffinian number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 320051.

It is not an unprimeable number, because it can be changed into a prime (320053) 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, 320 + ... + 861.

It is an arithmetic number, because the mean of its divisors is an integer number (80376).

2³²⁰⁰⁵¹ is an apocalyptic number.

320051 is a deficient number, since it is larger than the sum of its proper divisors (1453).

320051 is a wasteful number, since it uses less digits than its factorization.

320051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1452.

The product of its (nonzero) digits is 30, while the sum is 11.

The square root of 320051 is about 565.7305012106. The cubic root of 320051 is about 68.4026713729.

Adding to 320051 its reverse (150023), we get a palindrome (470074).

The spelling of 320051 in words is "three hundred twenty thousand, fifty-one".