164871794 has 16 divisors (see below), whose sum is σ = 251109720. Its totient is φ = 81177600.

The previous prime is 164871787. The next prime is 164871809. The reversal of 164871794 is 497178461.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 162231169 + 2640625 = 12737^2 + 1625^2 .

It is an unprimeable number.

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, 36872 + ... + 41100.

Almost surely, 2^164871794 is an apocalyptic number.

164871794 is a deficient number, since it is larger than the sum of its proper divisors (86237926).

164871794 is a wasteful number, since it uses less digits than its factorization.

164871794 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4525.

The product of its digits is 338688, while the sum is 47.

The square root of 164871794 is about 12840.2411971115. The cubic root of 164871794 is about 548.3385608364.

It can be divided in two parts, 16487 and 1794, that added together give a palindrome (18281).

The spelling of 164871794 in words is "one hundred sixty-four million, eight hundred seventy-one thousand, seven hundred ninety-four".