164234819 has 12 divisors (see below), whose sum is σ = 194290200. Its totient is φ = 138384288.

The previous prime is 164234797. The next prime is 164234843. The reversal of 164234819 is 918432461.

It is not a de Polignac number, because 164234819 - 2¹⁶ = 164169283 is a prime.

It is a super-2 number, since 2×164234819² = 53946151543925522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164234849) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 25514 + ... + 31295.

It is an arithmetic number, because the mean of its divisors is an integer number (16190850).

Almost surely, 2^164234819 is an apocalyptic number.

164234819 is a deficient number, since it is larger than the sum of its proper divisors (30055381).

164234819 is an equidigital number, since it uses as much as digits as its factorization.

164234819 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56882 (or 56875 counting only the distinct ones).

The product of its digits is 41472, while the sum is 38.

The square root of 164234819 is about 12815.4133370719. The cubic root of 164234819 is about 547.6314887513.

The spelling of 164234819 in words is "one hundred sixty-four million, two hundred thirty-four thousand, eight hundred nineteen".