164031205 has 8 divisors (see below), whose sum is σ = 211978872. Its totient is φ = 121130688.

The previous prime is 164031187. The next prime is 164031227. The reversal of 164031205 is 502130461.

164031205 = T₂₂₁₄ + T₂₂₁₅ + ... + T₂₂₇₈.

It can be written as a sum of positive squares in 4 ways, for example, as 7230721 + 156800484 = 2689^2 + 12522^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-164031205 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1261714 + ... + 1261843.

It is an arithmetic number, because the mean of its divisors is an integer number (26497359).

Almost surely, 2^164031205 is an apocalyptic number.

It is an amenable number.

164031205 is a deficient number, since it is larger than the sum of its proper divisors (47947667).

164031205 is a wasteful number, since it uses less digits than its factorization.

164031205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2523575.

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 164031205 is about 12807.4667674759. The cubic root of 164031205 is about 547.4050821325.

Adding to 164031205 its reverse (502130461), we get a palindrome (666161666).

The spelling of 164031205 in words is "one hundred sixty-four million, thirty-one thousand, two hundred five".