160722257 has 2 divisors, whose sum is σ = 160722258. Its totient is φ = 160722256.

The previous prime is 160722217. The next prime is 160722269. The reversal of 160722257 is 752227061.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 147646801 + 13075456 = 12151^2 + 3616^2 .

It is an emirp because it is prime and its reverse (752227061) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 160722257 - 2¹⁰ = 160721233 is a prime.

It is not a weakly prime, because it can be changed into another prime (160722217) 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 as a sum of consecutive naturals, namely, 80361128 + 80361129.

It is an arithmetic number, because the mean of its divisors is an integer number (80361129).

Almost surely, 2^160722257 is an apocalyptic number.

It is an amenable number.

160722257 is a deficient number, since it is larger than the sum of its proper divisors (1).

160722257 is an equidigital number, since it uses as much as digits as its factorization.

160722257 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11760, while the sum is 32.

The square root of 160722257 is about 12677.6282087779. The cubic root of 160722257 is about 543.6991752028.

The spelling of 160722257 in words is "one hundred sixty million, seven hundred twenty-two thousand, two hundred fifty-seven".