162805845 has 16 divisors (see below), whose sum is σ = 271815552. Its totient is φ = 83054400.

The previous prime is 162805837. The next prime is 162805847. The reversal of 162805845 is 548508261.

It is not a de Polignac number, because 162805845 - 2³ = 162805837 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (162805847) 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 in 15 ways as a sum of consecutive naturals, for example, 235606 + ... + 236295.

It is an arithmetic number, because the mean of its divisors is an integer number (16988472).

Almost surely, 2^162805845 is an apocalyptic number.

162805845 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

162805845 is a deficient number, since it is larger than the sum of its proper divisors (109009707).

162805845 is a wasteful number, since it uses less digits than its factorization.

162805845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 471932.

The product of its (nonzero) digits is 76800, while the sum is 39.

The square root of 162805845 is about 12759.5393725636. The cubic root of 162805845 is about 546.0385829247.

The spelling of 162805845 in words is "one hundred sixty-two million, eight hundred five thousand, eight hundred forty-five".