164144038 has 4 divisors (see below), whose sum is σ = 246216060. Its totient is φ = 82072018.

The previous prime is 164144023. The next prime is 164144041. The reversal of 164144038 is 830441461.

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

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 41036008 + ... + 41036011.

It is an arithmetic number, because the mean of its divisors is an integer number (61554015).

Almost surely, 2^164144038 is an apocalyptic number.

164144038 is a deficient number, since it is larger than the sum of its proper divisors (82072022).

164144038 is an equidigital number, since it uses as much as digits as its factorization.

164144038 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82072021.

The product of its (nonzero) digits is 9216, while the sum is 31.

The square root of 164144038 is about 12811.8709796813. The cubic root of 164144038 is about 547.5305688262.

Adding to 164144038 its reverse (830441461), we get a palindrome (994585499).

The spelling of 164144038 in words is "one hundred sixty-four million, one hundred forty-four thousand, thirty-eight".