160940257 has 2 divisors, whose sum is σ = 160940258. Its totient is φ = 160940256.

The previous prime is 160940249. The next prime is 160940291. The reversal of 160940257 is 752049061.

It is an a-pointer prime, because the next prime (160940291) can be obtained adding 160940257 to its sum of digits (34).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 160807761 + 132496 = 12681^2 + 364^2 .

It is an emirp because it is prime and its reverse (752049061) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 160940257 - 2³ = 160940249 is a prime.

It is not a weakly prime, because it can be changed into another prime (160940657) 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, 80470128 + 80470129.

It is an arithmetic number, because the mean of its divisors is an integer number (80470129).

Almost surely, 2^160940257 is an apocalyptic number.

It is an amenable number.

160940257 is a deficient number, since it is larger than the sum of its proper divisors (1).

160940257 is an equidigital number, since it uses as much as digits as its factorization.

160940257 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 160940257 is about 12686.2231180127. The cubic root of 160940257 is about 543.9448845275.

The spelling of 160940257 in words is "one hundred sixty million, nine hundred forty thousand, two hundred fifty-seven".