164013639 has 8 divisors (see below), whose sum is σ = 219475440. Its totient is φ = 108947136.

The previous prime is 164013631. The next prime is 164013659. The reversal of 164013639 is 936310461.

164013639 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 164013639 - 2³ = 164013631 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164013631) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 97854 + ... + 99515.

It is an arithmetic number, because the mean of its divisors is an integer number (27434430).

Almost surely, 2^164013639 is an apocalyptic number.

164013639 is a deficient number, since it is larger than the sum of its proper divisors (55461801).

164013639 is a wasteful number, since it uses less digits than its factorization.

164013639 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 197649.

The product of its (nonzero) digits is 11664, while the sum is 33.

The square root of 164013639 is about 12806.7809772792. The cubic root of 164013639 is about 547.3855410113.

The spelling of 164013639 in words is "one hundred sixty-four million, thirteen thousand, six hundred thirty-nine".