162845857 has 2 divisors, whose sum is σ = 162845858. Its totient is φ = 162845856.

The previous prime is 162845849. The next prime is 162845887. The reversal of 162845857 is 758548261.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 162715536 + 130321 = 12756^2 + 361^2 .

It is an emirp because it is prime and its reverse (758548261) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 162845857 - 2³ = 162845849 is a prime.

It is not a weakly prime, because it can be changed into another prime (162845887) 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, 81422928 + 81422929.

It is an arithmetic number, because the mean of its divisors is an integer number (81422929).

Almost surely, 2^162845857 is an apocalyptic number.

It is an amenable number.

162845857 is a deficient number, since it is larger than the sum of its proper divisors (1).

162845857 is an equidigital number, since it uses as much as digits as its factorization.

162845857 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 537600, while the sum is 46.

The square root of 162845857 is about 12761.1072011797. The cubic root of 162845857 is about 546.0833116755.

The spelling of 162845857 in words is "one hundred sixty-two million, eight hundred forty-five thousand, eight hundred fifty-seven".