320348091 has 16 divisors (see below), whose sum is σ = 488692224. Its totient is φ = 182852544.

The previous prime is 320348069. The next prime is 320348131. The reversal of 320348091 is 190843023.

It is not a de Polignac number, because 320348091 - 2¹⁷ = 320217019 is a prime.

It is not an unprimeable number, because it can be changed into a prime (320348591) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12010 + ... + 28016.

It is an arithmetic number, because the mean of its divisors is an integer number (30543264).

Almost surely, 2^320348091 is an apocalyptic number.

320348091 is a deficient number, since it is larger than the sum of its proper divisors (168344133).

320348091 is a wasteful number, since it uses less digits than its factorization.

320348091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16970.

The product of its (nonzero) digits is 5184, while the sum is 30.

The square root of 320348091 is about 17898.2706147829. The cubic root of 320348091 is about 684.2383001462.

The spelling of 320348091 in words is "three hundred twenty million, three hundred forty-eight thousand, ninety-one".