164452823 has 4 divisors (see below), whose sum is σ = 170123640. Its totient is φ = 158782008.

The previous prime is 164452811. The next prime is 164452831. The reversal of 164452823 is 328254461.

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 164452823 - 2⁴ = 164452807 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164452853) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2835365 + ... + 2835422.

It is an arithmetic number, because the mean of its divisors is an integer number (42530910).

Almost surely, 2^164452823 is an apocalyptic number.

164452823 is a deficient number, since it is larger than the sum of its proper divisors (5670817).

164452823 is an equidigital number, since it uses as much as digits as its factorization.

164452823 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5670816.

The product of its digits is 46080, while the sum is 35.

The square root of 164452823 is about 12823.9160555581. The cubic root of 164452823 is about 547.8736888540.

The spelling of 164452823 in words is "one hundred sixty-four million, four hundred fifty-two thousand, eight hundred twenty-three".