164343433 has 2 divisors, whose sum is σ = 164343434. Its totient is φ = 164343432.

The previous prime is 164343409. The next prime is 164343449. The reversal of 164343433 is 334343461.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 162129289 + 2214144 = 12733^2 + 1488^2 .

It is an emirp because it is prime and its reverse (334343461) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 164343433 - 2⁹ = 164342921 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 164343395 and 164343404.

It is not a weakly prime, because it can be changed into another prime (164343133) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82171716 + 82171717.

It is an arithmetic number, because the mean of its divisors is an integer number (82171717).

Almost surely, 2^164343433 is an apocalyptic number.

It is an amenable number.

164343433 is a deficient number, since it is larger than the sum of its proper divisors (1).

164343433 is an equidigital number, since it uses as much as digits as its factorization.

164343433 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 31104, while the sum is 31.

The square root of 164343433 is about 12819.6502682405. The cubic root of 164343433 is about 547.7521845120.

Adding to 164343433 its reverse (334343461), we get a palindrome (498686894).

The spelling of 164343433 in words is "one hundred sixty-four million, three hundred forty-three thousand, four hundred thirty-three".