320350193 has 4 divisors (see below), whose sum is σ = 339194340. Its totient is φ = 301506048.

The previous prime is 320350183. The next prime is 320350201. The reversal of 320350193 is 391053023.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 200732224 + 119617969 = 14168^2 + 10937^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-320350193 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (320350123) 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, 9422048 + ... + 9422081.

It is an arithmetic number, because the mean of its divisors is an integer number (84798585).

Almost surely, 2^320350193 is an apocalyptic number.

It is an amenable number.

320350193 is a deficient number, since it is larger than the sum of its proper divisors (18844147).

320350193 is a wasteful number, since it uses less digits than its factorization.

320350193 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18844146.

The product of its (nonzero) digits is 2430, while the sum is 26.

The square root of 320350193 is about 17898.3293354436. The cubic root of 320350193 is about 684.2397967118.

The spelling of 320350193 in words is "three hundred twenty million, three hundred fifty thousand, one hundred ninety-three".