162117256 has 16 divisors (see below), whose sum is σ = 347394240. Its totient is φ = 69478800.

The previous prime is 162117251. The next prime is 162117269. The reversal of 162117256 is 652711261.

It is not an unprimeable number, because it can be changed into a prime (162117251) 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 3 ways as a sum of consecutive naturals, for example, 1447420 + ... + 1447531.

It is an arithmetic number, because the mean of its divisors is an integer number (21712140).

Almost surely, 2^162117256 is an apocalyptic number.

It is an amenable number.

162117256 is an abundant number, since it is smaller than the sum of its proper divisors (185276984).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

162117256 is a wasteful number, since it uses less digits than its factorization.

162117256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2894964 (or 2894960 counting only the distinct ones).

The product of its digits is 5040, while the sum is 31.

The square root of 162117256 is about 12732.5274788629. The cubic root of 162117256 is about 545.2676697672.

The spelling of 162117256 in words is "one hundred sixty-two million, one hundred seventeen thousand, two hundred fifty-six".