164023530 has 32 divisors (see below), whose sum is σ = 429444288. Its totient is φ = 39763200.

The previous prime is 164023501. The next prime is 164023537. The reversal of 164023530 is 35320461.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 164023530.

It is not an unprimeable number, because it can be changed into a prime (164023537) 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, 248191 + ... + 248850.

It is an arithmetic number, because the mean of its divisors is an integer number (13420134).

Almost surely, 2^164023530 is an apocalyptic number.

164023530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

164023530 is an abundant number, since it is smaller than the sum of its proper divisors (265420758).

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

164023530 is a wasteful number, since it uses less digits than its factorization.

164023530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 497062.

The product of its (nonzero) digits is 2160, while the sum is 24.

The square root of 164023530 is about 12807.1671340699. The cubic root of 164023530 is about 547.3965443270.

Adding to 164023530 its reverse (35320461), we get a palindrome (199343991).

The spelling of 164023530 in words is "one hundred sixty-four million, twenty-three thousand, five hundred thirty".