162872081 has 2 divisors, whose sum is σ = 162872082. Its totient is φ = 162872080.

The previous prime is 162872071. The next prime is 162872111. The reversal of 162872081 is 180278261.

162872081 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., 130325056 + 32547025 = 11416^2 + 5705^2 .

It is a cyclic number.

It is not a de Polignac number, because 162872081 - 2²² = 158677777 is a prime.

It is a super-2 number, since 2×162872081² = 53054629538541122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (162872041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 81436040 + 81436041.

It is an arithmetic number, because the mean of its divisors is an integer number (81436041).

Almost surely, 2^162872081 is an apocalyptic number.

It is an amenable number.

162872081 is a deficient number, since it is larger than the sum of its proper divisors (1).

162872081 is an equidigital number, since it uses as much as digits as its factorization.

162872081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10752, while the sum is 35.

The square root of 162872081 is about 12762.1346568668. The cubic root of 162872081 is about 546.1126230754.

The spelling of 162872081 in words is "one hundred sixty-two million, eight hundred seventy-two thousand, eighty-one".