320140455 has 8 divisors (see below), whose sum is σ = 512224752. Its totient is φ = 170741568.

The previous prime is 320140451. The next prime is 320140459. The reversal of 320140455 is 554041023.

It is an interprime number because it is at equal distance from previous prime (320140451) and next prime (320140459).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 320140455 - 2² = 320140451 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320140451) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10671334 + ... + 10671363.

It is an arithmetic number, because the mean of its divisors is an integer number (64028094).

Almost surely, 2^320140455 is an apocalyptic number.

320140455 is a deficient number, since it is larger than the sum of its proper divisors (192084297).

320140455 is a wasteful number, since it uses less digits than its factorization.

320140455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21342705.

The product of its (nonzero) digits is 2400, while the sum is 24.

The square root of 320140455 is about 17892.4692259062. The cubic root of 320140455 is about 684.0904368127.

Adding to 320140455 its reverse (554041023), we get a palindrome (874181478).

The spelling of 320140455 in words is "three hundred twenty million, one hundred forty thousand, four hundred fifty-five".