164924643 has 8 divisors (see below), whose sum is σ = 236814928. Its totient is φ = 101492064.

The previous prime is 164924629. The next prime is 164924671. The reversal of 164924643 is 346429461.

164924643 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 164924643 - 2⁵ = 164924611 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39), and also a Moran number because the ratio is a prime number: 4228837 = 164924643 / (1 + 6 + 4 + 9 + 2 + 4 + 6 + 4 + 3).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (164924603) 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, 2114380 + ... + 2114457.

It is an arithmetic number, because the mean of its divisors is an integer number (29601866).

Almost surely, 2^164924643 is an apocalyptic number.

164924643 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

164924643 is a deficient number, since it is larger than the sum of its proper divisors (71890285).

164924643 is a wasteful number, since it uses less digits than its factorization.

164924643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4228853.

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

The square root of 164924643 is about 12842.2989764294. The cubic root of 164924643 is about 548.3971438280.

The spelling of 164924643 in words is "one hundred sixty-four million, nine hundred twenty-four thousand, six hundred forty-three".