164823238 has 4 divisors (see below), whose sum is σ = 247234860. Its totient is φ = 82411618.

The previous prime is 164823229. The next prime is 164823247. The reversal of 164823238 is 832328461.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 832328461 = 263 ⋅3164747.

It is an interprime number because it is at equal distance from previous prime (164823229) and next prime (164823247).

It is a junction number, because it is equal to n+sod(n) for n = 164823197 and 164823206.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 41205808 + ... + 41205811.

It is an arithmetic number, because the mean of its divisors is an integer number (61808715).

Almost surely, 2^164823238 is an apocalyptic number.

164823238 is a deficient number, since it is larger than the sum of its proper divisors (82411622).

164823238 is an equidigital number, since it uses as much as digits as its factorization.

164823238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82411621.

The product of its digits is 55296, while the sum is 37.

The square root of 164823238 is about 12838.3502834282. The cubic root of 164823238 is about 548.2847255892.

The spelling of 164823238 in words is "one hundred sixty-four million, eight hundred twenty-three thousand, two hundred thirty-eight".