164140530 has 32 divisors (see below), whose sum is σ = 395359488. Its totient is φ = 43612800.

The previous prime is 164140519. The next prime is 164140531. The reversal of 164140530 is 35041461.

164140530 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×164140530² = 53884227177361800, which contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 164140530.

It is not an unprimeable number, because it can be changed into a prime (164140531) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1306 + ... + 18165.

It is an arithmetic number, because the mean of its divisors is an integer number (12354984).

Almost surely, 2^164140530 is an apocalyptic number.

164140530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

164140530 is an abundant number, since it is smaller than the sum of its proper divisors (231218958).

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

164140530 is a wasteful number, since it uses less digits than its factorization.

164140530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19762.

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 164140530 is about 12811.7340746676. The cubic root of 164140530 is about 547.5266682867.

Adding to 164140530 its reverse (35041461), we get a palindrome (199181991).

The spelling of 164140530 in words is "one hundred sixty-four million, one hundred forty thousand, five hundred thirty".