164206051 has 4 divisors (see below), whose sum is σ = 164911032. Its totient is φ = 163501072.

The previous prime is 164206013. The next prime is 164206057. The reversal of 164206051 is 150602461.

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 164206051 - 2¹⁵ = 164173283 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (164206057) 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, 352141 + ... + 352606.

It is an arithmetic number, because the mean of its divisors is an integer number (41227758).

Almost surely, 2^164206051 is an apocalyptic number.

164206051 is a deficient number, since it is larger than the sum of its proper divisors (704981).

164206051 is an equidigital number, since it uses as much as digits as its factorization.

164206051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 704980.

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 164206051 is about 12814.2908894718. The cubic root of 164206051 is about 547.5995118078.

The spelling of 164206051 in words is "one hundred sixty-four million, two hundred six thousand, fifty-one".