164432501 has 2 divisors, whose sum is σ = 164432502. Its totient is φ = 164432500.

The previous prime is 164432491. The next prime is 164432519. The reversal of 164432501 is 105234461.

164432501 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 117180625 + 47251876 = 10825^2 + 6874^2 .

It is an emirp because it is prime and its reverse (105234461) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-164432501 is a prime.

It is a super-3 number, since 3×164432501³ (a number of 26 digits) contains 333 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (164432531) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82216250 + 82216251.

It is an arithmetic number, because the mean of its divisors is an integer number (82216251).

Almost surely, 2^164432501 is an apocalyptic number.

It is an amenable number.

164432501 is a deficient number, since it is larger than the sum of its proper divisors (1).

164432501 is an equidigital number, since it uses as much as digits as its factorization.

164432501 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 164432501 is about 12823.1236834088. The cubic root of 164432501 is about 547.8511203800.

Adding to 164432501 its reverse (105234461), we get a palindrome (269666962).

The spelling of 164432501 in words is "one hundred sixty-four million, four hundred thirty-two thousand, five hundred one".