164442136 has 16 divisors (see below), whose sum is σ = 312553800. Its totient is φ = 81094464.

The previous prime is 164442127. The next prime is 164442149. The reversal of 164442136 is 631244461.

It is a junction number, because it is equal to n+sod(n) for n = 164442098 and 164442107.

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 in 3 ways as a sum of consecutive naturals, for example, 140206 + ... + 141373.

Almost surely, 2^164442136 is an apocalyptic number.

It is an amenable number.

164442136 is a deficient number, since it is larger than the sum of its proper divisors (148111664).

164442136 is a wasteful number, since it uses less digits than its factorization.

164442136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 281658 (or 281654 counting only the distinct ones).

The product of its digits is 13824, while the sum is 31.

The square root of 164442136 is about 12823.4993663976. The cubic root of 164442136 is about 547.8618207027.

Adding to 164442136 its reverse (631244461), we get a palindrome (795686597).

The spelling of 164442136 in words is "one hundred sixty-four million, four hundred forty-two thousand, one hundred thirty-six".