164901729 has 8 divisors (see below), whose sum is σ = 220745952. Its totient is φ = 109496000.

The previous prime is 164901719. The next prime is 164901731. The reversal of 164901729 is 927109461.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 164901729 - 2²⁰ = 163853153 is a prime.

It is not an unprimeable number, because it can be changed into a prime (164901719) 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 7 ways as a sum of consecutive naturals, for example, 108744 + ... + 110249.

It is an arithmetic number, because the mean of its divisors is an integer number (27593244).

Almost surely, 2^164901729 is an apocalyptic number.

It is an amenable number.

164901729 is a deficient number, since it is larger than the sum of its proper divisors (55844223).

164901729 is a wasteful number, since it uses less digits than its factorization.

164901729 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 219247.

The product of its (nonzero) digits is 27216, while the sum is 39.

The square root of 164901729 is about 12841.4068154545. The cubic root of 164901729 is about 548.3717452502.

The spelling of 164901729 in words is "one hundred sixty-four million, nine hundred one thousand, seven hundred twenty-nine".