320137417 has 4 divisors (see below), whose sum is σ = 320524420. Its totient is φ = 319750416.

The previous prime is 320137397. The next prime is 320137427. The reversal of 320137417 is 714731023.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 714731023 = 53 ⋅13485491.

It can be written as a sum of positive squares in 2 ways, for example, as 241211961 + 78925456 = 15531^2 + 8884^2 .

It is a cyclic number.

It is not a de Polignac number, because 320137417 - 2¹¹ = 320135369 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (320137427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 192258 + ... + 193915.

It is an arithmetic number, because the mean of its divisors is an integer number (80131105).

Almost surely, 2^320137417 is an apocalyptic number.

It is an amenable number.

320137417 is a deficient number, since it is larger than the sum of its proper divisors (387003).

320137417 is an equidigital number, since it uses as much as digits as its factorization.

320137417 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 387002.

The product of its (nonzero) digits is 3528, while the sum is 28.

The square root of 320137417 is about 17892.3843296527. The cubic root of 320137417 is about 684.0882728944.

The spelling of 320137417 in words is "three hundred twenty million, one hundred thirty-seven thousand, four hundred seventeen".