164484138 has 64 divisors (see below), whose sum is σ = 410683392. Its totient is φ = 42759360.

The previous prime is 164484137. The next prime is 164484157. The reversal of 164484138 is 831484461.

164484138 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a junction number, because it is equal to n+sod(n) for n = 164484096 and 164484105.

It is not an unprimeable number, because it can be changed into a prime (164484137) 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, 36645 + ... + 40887.

It is an arithmetic number, because the mean of its divisors is an integer number (6416928).

Almost surely, 2^164484138 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 164484138, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (205341696).

164484138 is an abundant number, since it is smaller than the sum of its proper divisors (246199254).

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

164484138 is a wasteful number, since it uses less digits than its factorization.

164484138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4339.

The product of its digits is 73728, while the sum is 39.

The square root of 164484138 is about 12825.1369583330. The cubic root of 164484138 is about 547.9084618979.

The spelling of 164484138 in words is "one hundred sixty-four million, four hundred eighty-four thousand, one hundred thirty-eight".