162121064 has 32 divisors (see below), whose sum is σ = 353963520. Its totient is φ = 68168256.

The previous prime is 162121033. The next prime is 162121067. The reversal of 162121064 is 460121261.

It is not an unprimeable number, because it can be changed into a prime (162121067) 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 7 ways as a sum of consecutive naturals, for example, 24344 + ... + 30279.

It is an arithmetic number, because the mean of its divisors is an integer number (11061360).

Almost surely, 2^162121064 is an apocalyptic number.

162121064 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

162121064 is an abundant number, since it is smaller than the sum of its proper divisors (191842456).

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

162121064 is a wasteful number, since it uses less digits than its factorization.

162121064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54689 (or 54685 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 23.

The square root of 162121064 is about 12732.6770162445. The cubic root of 162121064 is about 545.2719390290.

The spelling of 162121064 in words is "one hundred sixty-two million, one hundred twenty-one thousand, sixty-four".