160657261 has 2 divisors, whose sum is σ = 160657262. Its totient is φ = 160657260.

The previous prime is 160657249. The next prime is 160657267. The reversal of 160657261 is 162756061.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 105452361 + 55204900 = 10269^2 + 7430^2 .

It is a cyclic number.

It is not a de Polignac number, because 160657261 - 2²⁷ = 26439533 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (160657267) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 80328630 + 80328631.

It is an arithmetic number, because the mean of its divisors is an integer number (80328631).

Almost surely, 2^160657261 is an apocalyptic number.

It is an amenable number.

160657261 is a deficient number, since it is larger than the sum of its proper divisors (1).

160657261 is an equidigital number, since it uses as much as digits as its factorization.

160657261 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15120, while the sum is 34.

The square root of 160657261 is about 12675.0645363249. The cubic root of 160657261 is about 543.6258747633.

The spelling of 160657261 in words is "one hundred sixty million, six hundred fifty-seven thousand, two hundred sixty-one".