160673281 has 4 divisors (see below), whose sum is σ = 162707200. Its totient is φ = 158639364.

The previous prime is 160673257. The next prime is 160673287. The reversal of 160673281 is 182376061.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 182376061 = 7 ⋅26053723.

It is a cyclic number.

It is not a de Polignac number, because 160673281 - 2²³ = 152284673 is a prime.

It is a super-2 number, since 2×160673281² = 51631806454609922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (160673287) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1016841 + ... + 1016998.

It is an arithmetic number, because the mean of its divisors is an integer number (40676800).

Almost surely, 2^160673281 is an apocalyptic number.

It is an amenable number.

160673281 is a deficient number, since it is larger than the sum of its proper divisors (2033919).

160673281 is an equidigital number, since it uses as much as digits as its factorization.

160673281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2033918.

The product of its (nonzero) digits is 12096, while the sum is 34.

The square root of 160673281 is about 12675.6964700169. The cubic root of 160673281 is about 543.6439434498.

The spelling of 160673281 in words is "one hundred sixty million, six hundred seventy-three thousand, two hundred eighty-one".