164408129 has 4 divisors (see below), whose sum is σ = 164683200. Its totient is φ = 164133060.

The previous prime is 164408119. The next prime is 164408171. The reversal of 164408129 is 921804461.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 921804461 = 53 ⋅17392537.

It is a cyclic number.

It is not a de Polignac number, because 164408129 - 2¹⁶ = 164342593 is a prime.

It is a super-3 number, since 3×164408129³ (a number of 26 digits) contains 333 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (164408119) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 136637 + ... + 137834.

It is an arithmetic number, because the mean of its divisors is an integer number (41170800).

Almost surely, 2^164408129 is an apocalyptic number.

It is an amenable number.

164408129 is a deficient number, since it is larger than the sum of its proper divisors (275071).

164408129 is an equidigital number, since it uses as much as digits as its factorization.

164408129 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 275070.

The product of its (nonzero) digits is 13824, while the sum is 35.

The square root of 164408129 is about 12822.1733337215. The cubic root of 164408129 is about 547.8240517507.

The spelling of 164408129 in words is "one hundred sixty-four million, four hundred eight thousand, one hundred twenty-nine".