164594434 has 4 divisors (see below), whose sum is σ = 246891654. Its totient is φ = 82297216.

The previous prime is 164594393. The next prime is 164594471. The reversal of 164594434 is 434495461.

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

It can be written as a sum of positive squares in only one way, i.e., 155077209 + 9517225 = 12453^2 + 3085^2 .

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41148607 + ... + 41148610.

Almost surely, 2^164594434 is an apocalyptic number.

164594434 is a deficient number, since it is larger than the sum of its proper divisors (82297220).

164594434 is an equidigital number, since it uses as much as digits as its factorization.

164594434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82297219.

The product of its digits is 207360, while the sum is 40.

The square root of 164594434 is about 12829.4362307936. The cubic root of 164594434 is about 548.0309024966.

The spelling of 164594434 in words is "one hundred sixty-four million, five hundred ninety-four thousand, four hundred thirty-four".