320714561 has 16 divisors (see below), whose sum is σ = 335892480. Its totient is φ = 305879760.

The previous prime is 320714531. The next prime is 320714579. The reversal of 320714561 is 165417023.

It is a cyclic number.

It is not a de Polignac number, because 320714561 - 2¹⁸ = 320452417 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (320714531) 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, 1133126 + ... + 1133408.

It is an arithmetic number, because the mean of its divisors is an integer number (20993280).

Almost surely, 2^320714561 is an apocalyptic number.

320714561 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

It is an amenable number.

320714561 is a deficient number, since it is larger than the sum of its proper divisors (15177919).

320714561 is a wasteful number, since it uses less digits than its factorization.

320714561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 716.

The product of its (nonzero) digits is 5040, while the sum is 29.

The square root of 320714561 is about 17908.5052698432. The cubic root of 320714561 is about 684.4991177374.

The spelling of 320714561 in words is "three hundred twenty million, seven hundred fourteen thousand, five hundred sixty-one".