164449239 has 8 divisors (see below), whose sum is σ = 221206512. Its totient is φ = 108662400.

The previous prime is 164449231. The next prime is 164449249. The reversal of 164449239 is 932944461.

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

It is not a de Polignac number, because 164449239 - 2³ = 164449231 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 164449239.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164449231) 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 7 ways as a sum of consecutive naturals, for example, 242212 + ... + 242889.

It is an arithmetic number, because the mean of its divisors is an integer number (27650814).

Almost surely, 2^164449239 is an apocalyptic number.

164449239 is a deficient number, since it is larger than the sum of its proper divisors (56757273).

164449239 is a wasteful number, since it uses less digits than its factorization.

164449239 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 485217.

The product of its digits is 186624, while the sum is 42.

The square root of 164449239 is about 12823.7763158907. The cubic root of 164449239 is about 547.8697087995.

The spelling of 164449239 in words is "one hundred sixty-four million, four hundred forty-nine thousand, two hundred thirty-nine".