320283145 has 64 divisors (see below), whose sum is σ = 512096256. Its totient is φ = 186531840.

The previous prime is 320283127. The next prime is 320283149. The reversal of 320283145 is 541382023.

It is not a de Polignac number, because 320283145 - 2¹⁷ = 320152073 is a prime.

It is not an unprimeable number, because it can be changed into a prime (320283149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 363105 + ... + 363985.

It is an arithmetic number, because the mean of its divisors is an integer number (8001504).

Almost surely, 2^320283145 is an apocalyptic number.

320283145 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

320283145 is a deficient number, since it is larger than the sum of its proper divisors (191813111).

320283145 is a wasteful number, since it uses less digits than its factorization.

320283145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 970.

The product of its (nonzero) digits is 5760, while the sum is 28.

The square root of 320283145 is about 17896.4562134519. The cubic root of 320283145 is about 684.1920571735.

The spelling of 320283145 in words is "three hundred twenty million, two hundred eighty-three thousand, one hundred forty-five".