164342649 has 8 divisors (see below), whose sum is σ = 219261952. Its totient is φ = 109492560.

The previous prime is 164342593. The next prime is 164342653. The reversal of 164342649 is 946243461.

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

It is not a de Polignac number, because 164342649 - 2⁸ = 164342393 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (164343649) 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, 11482 + ... + 21459.

It is an arithmetic number, because the mean of its divisors is an integer number (27407744).

Almost surely, 2^164342649 is an apocalyptic number.

It is an amenable number.

164342649 is a deficient number, since it is larger than the sum of its proper divisors (54919303).

164342649 is a wasteful number, since it uses less digits than its factorization.

164342649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34607.

The product of its digits is 124416, while the sum is 39.

The square root of 164342649 is about 12819.6196901468. The cubic root of 164342649 is about 547.7513134937.

The spelling of 164342649 in words is "one hundred sixty-four million, three hundred forty-two thousand, six hundred forty-nine".