162139000 has 64 divisors (see below), whose sum is σ = 392558400. Its totient is φ = 62608000.

The previous prime is 162138973. The next prime is 162139007. The reversal of 162139000 is 931261.

162139000 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (162139007) 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, 26205 + ... + 31795.

It is an arithmetic number, because the mean of its divisors is an integer number (6133725).

Almost surely, 2^162139000 is an apocalyptic number.

162139000 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 162139000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (196279200).

162139000 is an abundant number, since it is smaller than the sum of its proper divisors (230419400).

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

162139000 is a wasteful number, since it uses less digits than its factorization.

162139000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5641 (or 5627 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 22.

The square root of 162139000 is about 12733.3813262621. The cubic root of 162139000 is about 545.2920467119.

The spelling of 162139000 in words is "one hundred sixty-two million, one hundred thirty-nine thousand".