164761072 has 40 divisors (see below), whose sum is σ = 368949600. Its totient is φ = 69814272.

The previous prime is 164761049. The next prime is 164761117. The reversal of 164761072 is 270167461.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

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, 1704 + ... + 18232.

It is an arithmetic number, because the mean of its divisors is an integer number (9223740).

Almost surely, 2^164761072 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 164761072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (184474800).

164761072 is an abundant number, since it is smaller than the sum of its proper divisors (204188528).

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

164761072 is a wasteful number, since it uses less digits than its factorization.

164761072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16633 (or 16627 counting only the distinct ones).

The product of its (nonzero) digits is 14112, while the sum is 34.

The square root of 164761072 is about 12835.9289496320. The cubic root of 164761072 is about 548.2157851599.

The spelling of 164761072 in words is "one hundred sixty-four million, seven hundred sixty-one thousand, seventy-two".