320152253 has 2 divisors, whose sum is σ = 320152254. Its totient is φ = 320152252.

The previous prime is 320152237. The next prime is 320152289. The reversal of 320152253 is 352251023.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 217798564 + 102353689 = 14758^2 + 10117^2 .

It is a cyclic number.

It is not a de Polignac number, because 320152253 - 2⁴ = 320152237 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (320152753) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160076126 + 160076127.

It is an arithmetic number, because the mean of its divisors is an integer number (160076127).

Almost surely, 2^320152253 is an apocalyptic number.

It is an amenable number.

320152253 is a deficient number, since it is larger than the sum of its proper divisors (1).

320152253 is an equidigital number, since it uses as much as digits as its factorization.

320152253 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1800, while the sum is 23.

The square root of 320152253 is about 17892.7989146472. The cubic root of 320152253 is about 684.0988402074.

The spelling of 320152253 in words is "three hundred twenty million, one hundred fifty-two thousand, two hundred fifty-three".