164873129 has 2 divisors, whose sum is σ = 164873130. Its totient is φ = 164873128.

The previous prime is 164873099. The next prime is 164873143. The reversal of 164873129 is 921378461.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 122323600 + 42549529 = 11060^2 + 6523^2 .

It is a cyclic number.

It is not a de Polignac number, because 164873129 - 2¹⁶ = 164807593 is a prime.

It is not a weakly prime, because it can be changed into another prime (164873029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82436564 + 82436565.

It is an arithmetic number, because the mean of its divisors is an integer number (82436565).

Almost surely, 2^164873129 is an apocalyptic number.

It is an amenable number.

164873129 is a deficient number, since it is larger than the sum of its proper divisors (1).

164873129 is an equidigital number, since it uses as much as digits as its factorization.

164873129 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 72576, while the sum is 41.

The square root of 164873129 is about 12840.2931820111. The cubic root of 164873129 is about 548.3400408349.

The spelling of 164873129 in words is "one hundred sixty-four million, eight hundred seventy-three thousand, one hundred twenty-nine".