164935389 has 4 divisors (see below), whose sum is σ = 219913856. Its totient is φ = 109956924.

The previous prime is 164935357. The next prime is 164935391. The reversal of 164935389 is 983539461.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 983539461 = 3 ⋅327846487.

It is not a de Polignac number, because 164935389 - 2⁵ = 164935357 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164935349) 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 3 ways as a sum of consecutive naturals, for example, 27489229 + ... + 27489234.

It is an arithmetic number, because the mean of its divisors is an integer number (54978464).

Almost surely, 2^164935389 is an apocalyptic number.

It is an amenable number.

164935389 is a deficient number, since it is larger than the sum of its proper divisors (54978467).

164935389 is an equidigital number, since it uses as much as digits as its factorization.

164935389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54978466.

The product of its digits is 699840, while the sum is 48.

The square root of 164935389 is about 12842.7173526478. The cubic root of 164935389 is about 548.4090542125.

The spelling of 164935389 in words is "one hundred sixty-four million, nine hundred thirty-five thousand, three hundred eighty-nine".