164788071 has 8 divisors (see below), whose sum is σ = 251105664. Its totient is φ = 94164600.

The previous prime is 164788067. The next prime is 164788073. The reversal of 164788071 is 170887461.

It is a happy number.

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

It is not a de Polignac number, because 164788071 - 2² = 164788067 is a prime.

It is a Smith number, since the sum of its digits (42) 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 not an unprimeable number, because it can be changed into a prime (164788073) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3923505 + ... + 3923546.

It is an arithmetic number, because the mean of its divisors is an integer number (31388208).

Almost surely, 2^164788071 is an apocalyptic number.

164788071 is a deficient number, since it is larger than the sum of its proper divisors (86317593).

164788071 is an equidigital number, since it uses as much as digits as its factorization.

164788071 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7847061.

The product of its (nonzero) digits is 75264, while the sum is 42.

The square root of 164788071 is about 12836.9806029300. The cubic root of 164788071 is about 548.2457284578.

The spelling of 164788071 in words is "one hundred sixty-four million, seven hundred eighty-eight thousand, seventy-one".