164672159 has 4 divisors (see below), whose sum is σ = 166928016. Its totient is φ = 162416304.

The previous prime is 164672143. The next prime is 164672173. The reversal of 164672159 is 951276461.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 951276461 = 1523 ⋅624607.

It is a cyclic number.

It is not a de Polignac number, because 164672159 - 2⁴ = 164672143 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164672129) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1127819 + ... + 1127964.

It is an arithmetic number, because the mean of its divisors is an integer number (41732004).

Almost surely, 2^164672159 is an apocalyptic number.

164672159 is a deficient number, since it is larger than the sum of its proper divisors (2255857).

164672159 is an equidigital number, since it uses as much as digits as its factorization.

164672159 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2255856.

The product of its digits is 90720, while the sum is 41.

The square root of 164672159 is about 12832.4650398900. The cubic root of 164672159 is about 548.1171528793.

The spelling of 164672159 in words is "one hundred sixty-four million, six hundred seventy-two thousand, one hundred fifty-nine".