160703981 has 2 divisors, whose sum is σ = 160703982. Its totient is φ = 160703980.

The previous prime is 160703971. The next prime is 160704001. The reversal of 160703981 is 189307061.

160703981 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 110775625 + 49928356 = 10525^2 + 7066^2 .

It is a cyclic number.

It is not a de Polignac number, because 160703981 - 2¹⁰ = 160702957 is a prime.

It is a super-2 number, since 2×160703981² = 51651539018496722, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (160703971) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 80351990 + 80351991.

It is an arithmetic number, because the mean of its divisors is an integer number (80351991).

Almost surely, 2^160703981 is an apocalyptic number.

It is an amenable number.

160703981 is a deficient number, since it is larger than the sum of its proper divisors (1).

160703981 is an equidigital number, since it uses as much as digits as its factorization.

160703981 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9072, while the sum is 35.

The square root of 160703981 is about 12676.9073910004. The cubic root of 160703981 is about 543.6785661037.

The spelling of 160703981 in words is "one hundred sixty million, seven hundred three thousand, nine hundred eighty-one".