160870261 has 2 divisors, whose sum is σ = 160870262. Its totient is φ = 160870260.

The previous prime is 160870231. The next prime is 160870277. The reversal of 160870261 is 162078061.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 160807761 + 62500 = 12681^2 + 250^2 .

It is an emirp because it is prime and its reverse (162078061) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 160870261 - 2¹⁹ = 160345973 is a prime.

It is a Chen prime.

It is equal to p_9020659 and since 160870261 and 9020659 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (160870231) 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, 80435130 + 80435131.

It is an arithmetic number, because the mean of its divisors is an integer number (80435131).

Almost surely, 2^160870261 is an apocalyptic number.

It is an amenable number.

160870261 is a deficient number, since it is larger than the sum of its proper divisors (1).

160870261 is an equidigital number, since it uses as much as digits as its factorization.

160870261 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4032, while the sum is 31.

The square root of 160870261 is about 12683.4640772937. The cubic root of 160870261 is about 543.8660157434.

The spelling of 160870261 in words is "one hundred sixty million, eight hundred seventy thousand, two hundred sixty-one".