164205051 has 4 divisors (see below), whose sum is σ = 218940072.
Its totient is φ = 109470032.
The previous prime is 164205029. The next prime is 164205079. The reversal of 164205051 is 150502461.
It is a semiprime because it is the product of two primes.
It is a cyclic number.
It is not a de Polignac number, because 164205051 - 213 = 164196859 is a prime.
It is not an unprimeable number, because it can be changed into a prime (164205551) 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, 27367506 + ... + 27367511.
It is an arithmetic number, because the mean of its divisors is an integer number (54735018).
Almost surely, 2164205051 is an apocalyptic number.
164205051 is a deficient number, since it is larger than the sum of its proper divisors (54735021).
164205051 is an equidigital number, since it uses as much as digits as its factorization.
164205051 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 54735020.
The product of its (nonzero) digits is 1200, while the sum is 24.
The square root of 164205051 is about 12814.2518704761.
The cubic root of 164205051 is about 547.5984001950.
The spelling of 164205051 in words is "one hundred sixty-four million, two hundred five thousand, fifty-one".