164033530 has 16 divisors (see below), whose sum is σ = 295594920. Its totient is φ = 65539072.

The previous prime is 164033521. The next prime is 164033537. The reversal of 164033530 is 35330461.

It can be written as a sum of positive squares in 4 ways, for example, as 47458321 + 116575209 = 6889^2 + 10797^2 .

It is a junction number, because it is equal to n+sod(n) for n = 164033495 and 164033504.

It is not an unprimeable number, because it can be changed into a prime (164033537) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 462 + ... + 18118.

Almost surely, 2^164033530 is an apocalyptic number.

164033530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

164033530 is a deficient number, since it is larger than the sum of its proper divisors (131561390).

164033530 is a wasteful number, since it uses less digits than its factorization.

164033530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18593.

The product of its (nonzero) digits is 3240, while the sum is 25.

The square root of 164033530 is about 12807.5575345184. The cubic root of 164033530 is about 547.4076684509.

Adding to 164033530 its reverse (35330461), we get a palindrome (199363991).

The spelling of 164033530 in words is "one hundred sixty-four million, thirty-three thousand, five hundred thirty".