164143236 has 12 divisors (see below), whose sum is σ = 383000912. Its totient is φ = 54714408.

The previous prime is 164143183. The next prime is 164143237. The reversal of 164143236 is 632341461.

It is a tau number, because it is divible by the number of its divisors (12).

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (164143237) 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, 6839290 + ... + 6839313.

Almost surely, 2^164143236 is an apocalyptic number.

It is an amenable number.

164143236 is an abundant number, since it is smaller than the sum of its proper divisors (218857676).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

164143236 is a wasteful number, since it uses less digits than its factorization.

164143236 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13678610 (or 13678608 counting only the distinct ones).

The product of its digits is 10368, while the sum is 30.

The square root of 164143236 is about 12811.8396805455. The cubic root of 164143236 is about 547.5296770886.

Adding to 164143236 its reverse (632341461), we get a palindrome (796484697).

The spelling of 164143236 in words is "one hundred sixty-four million, one hundred forty-three thousand, two hundred thirty-six".