164349959 has 4 divisors (see below), whose sum is σ = 164460240. Its totient is φ = 164239680.

The previous prime is 164349949. The next prime is 164350009. The reversal of 164349959 is 959943461.

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

It is a cyclic number.

It is not a de Polignac number, because 164349959 - 2²⁴ = 147572743 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 (164349919) by changing a digit.

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, 52874 + ... + 55895.

It is an arithmetic number, because the mean of its divisors is an integer number (41115060).

Almost surely, 2^164349959 is an apocalyptic number.

164349959 is a deficient number, since it is larger than the sum of its proper divisors (110281).

164349959 is a wasteful number, since it uses less digits than its factorization.

164349959 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110280.

The product of its digits is 1049760, while the sum is 50.

The square root of 164349959 is about 12819.9047968384. The cubic root of 164349959 is about 547.7594347427.

The spelling of 164349959 in words is "one hundred sixty-four million, three hundred forty-nine thousand, nine hundred fifty-nine".