164308219 has 4 divisors (see below), whose sum is σ = 172956040. Its totient is φ = 155660400.

The previous prime is 164308201. The next prime is 164308259. The reversal of 164308219 is 912803461.

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 164308219 - 2¹¹ = 164306171 is a prime.

It is a super-2 number, since 2×164308219² = 53994381661903922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (164308259) 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, 4323882 + ... + 4323919.

It is an arithmetic number, because the mean of its divisors is an integer number (43239010).

Almost surely, 2^164308219 is an apocalyptic number.

164308219 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

164308219 is a deficient number, since it is larger than the sum of its proper divisors (8647821).

164308219 is an equidigital number, since it uses as much as digits as its factorization.

164308219 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8647820.

The product of its (nonzero) digits is 10368, while the sum is 34.

The square root of 164308219 is about 12818.2767562571. The cubic root of 164308219 is about 547.7130592832.

It can be divided in two parts, 16430 and 8219, that added together give a square (24649 = 157²).

The spelling of 164308219 in words is "one hundred sixty-four million, three hundred eight thousand, two hundred nineteen".