164405029 has 2 divisors, whose sum is σ = 164405030. Its totient is φ = 164405028.

The previous prime is 164404991. The next prime is 164405041. The reversal of 164405029 is 920504461.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 163788804 + 616225 = 12798^2 + 785^2 .

It is an emirp because it is prime and its reverse (920504461) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 164405029 - 2⁹ = 164404517 is a prime.

It is a super-3 number, since 3×164405029³ (a number of 26 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (164405429) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82202514 + 82202515.

It is an arithmetic number, because the mean of its divisors is an integer number (82202515).

Almost surely, 2^164405029 is an apocalyptic number.

It is an amenable number.

164405029 is a deficient number, since it is larger than the sum of its proper divisors (1).

164405029 is an equidigital number, since it uses as much as digits as its factorization.

164405029 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8640, while the sum is 31.

The square root of 164405029 is about 12822.0524488087. The cubic root of 164405029 is about 547.8206085608.

The spelling of 164405029 in words is "one hundred sixty-four million, four hundred five thousand, twenty-nine".