164263369 has 4 divisors (see below), whose sum is σ = 164968596. Its totient is φ = 163558144.

The previous prime is 164263223. The next prime is 164263373. The reversal of 164263369 is 963362461.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 98247744 + 66015625 = 9912^2 + 8125^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-164263369 is a prime.

It is a super-2 number, since 2×164263369² = 53964908790460322, which contains 22 as substring.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (164263069) 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, 352264 + ... + 352729.

It is an arithmetic number, because the mean of its divisors is an integer number (41242149).

Almost surely, 2^164263369 is an apocalyptic number.

It is an amenable number.

164263369 is a deficient number, since it is larger than the sum of its proper divisors (705227).

164263369 is an equidigital number, since it uses as much as digits as its factorization.

164263369 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 705226.

The product of its digits is 139968, while the sum is 40.

The square root of 164263369 is about 12816.5271817291. The cubic root of 164263369 is about 547.6632196864.

The spelling of 164263369 in words is "one hundred sixty-four million, two hundred sixty-three thousand, three hundred sixty-nine".