164271243 has 8 divisors (see below), whose sum is σ = 222029008. Its totient is φ = 108013824.

The previous prime is 164271241. The next prime is 164271259. The reversal of 164271243 is 342172461.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 164271243 - 2¹ = 164271241 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 164271243.

It is not an unprimeable number, because it can be changed into a prime (164271241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 374830 + ... + 375267.

It is an arithmetic number, because the mean of its divisors is an integer number (27753626).

Almost surely, 2^164271243 is an apocalyptic number.

164271243 is a deficient number, since it is larger than the sum of its proper divisors (57757765).

164271243 is an equidigital number, since it uses as much as digits as its factorization.

164271243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 750173.

The product of its digits is 8064, while the sum is 30.

The square root of 164271243 is about 12816.8343595445. The cubic root of 164271243 is about 547.6719703314.

The spelling of 164271243 in words is "one hundred sixty-four million, two hundred seventy-one thousand, two hundred forty-three".