162123000 has 128 divisors (see below), whose sum is σ = 544864320. Its totient is φ = 39897600.

The previous prime is 162122969. The next prime is 162123001. The reversal of 162123000 is 321261.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (162123001) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 36922 + ... + 41078.

Almost surely, 2^162123000 is an apocalyptic number.

162123000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 162123000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (272432160).

162123000 is an abundant number, since it is smaller than the sum of its proper divisors (382741320).

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

162123000 is a wasteful number, since it uses less digits than its factorization.

162123000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4194 (or 4180 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 162123000 is about 12732.7530408785. The cubic root of 162123000 is about 545.2741095104.

Adding to 162123000 its reverse (321261), we get a palindrome (162444261).

The spelling of 162123000 in words is "one hundred sixty-two million, one hundred twenty-three thousand".