164940194 has 8 divisors (see below), whose sum is σ = 247684608. Its totient is φ = 82378660.

The previous prime is 164940163. The next prime is 164940203. The reversal of 164940194 is 491049461.

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

It is a Curzon 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 in 3 ways as a sum of consecutive naturals, for example, 43442 + ... + 47085.

It is an arithmetic number, because the mean of its divisors is an integer number (30960576).

Almost surely, 2^164940194 is an apocalyptic number.

164940194 is a deficient number, since it is larger than the sum of its proper divisors (82744414).

164940194 is an equidigital number, since it uses as much as digits as its factorization.

164940194 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91440.

The product of its (nonzero) digits is 31104, while the sum is 38.

The square root of 164940194 is about 12842.9044222870. The cubic root of 164940194 is about 548.4143796916.

The spelling of 164940194 in words is "one hundred sixty-four million, nine hundred forty thousand, one hundred ninety-four".