162840945 has 16 divisors (see below), whose sum is σ = 269530560. Its totient is φ = 83853504.

The previous prime is 162840941. The next prime is 162841009. The reversal of 162840945 is 549048261.

It is not a de Polignac number, because 162840945 - 2² = 162840941 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (162840941) 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, 186739 + ... + 187608.

It is an arithmetic number, because the mean of its divisors is an integer number (16845660).

Almost surely, 2^162840945 is an apocalyptic number.

162840945 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

162840945 is a deficient number, since it is larger than the sum of its proper divisors (106689615).

162840945 is a wasteful number, since it uses less digits than its factorization.

162840945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 374384.

The product of its (nonzero) digits is 69120, while the sum is 39.

The square root of 162840945 is about 12760.9147399393. The cubic root of 162840945 is about 546.0778210267.

The spelling of 162840945 in words is "one hundred sixty-two million, eight hundred forty thousand, nine hundred forty-five".