164840812 has 12 divisors (see below), whose sum is σ = 293914656. Its totient is φ = 80865200.

The previous prime is 164840791. The next prime is 164840813. The reversal of 164840812 is 218048461.

164840812 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (164840813) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 388564 + ... + 388987.

It is an arithmetic number, because the mean of its divisors is an integer number (24492888).

Almost surely, 2^164840812 is an apocalyptic number.

It is an amenable number.

164840812 is a deficient number, since it is larger than the sum of its proper divisors (129073844).

164840812 is a wasteful number, since it uses less digits than its factorization.

164840812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 777608 (or 777606 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 34.

The square root of 164840812 is about 12839.0346989172. The cubic root of 164840812 is about 548.3042115417.

The spelling of 164840812 in words is "one hundred sixty-four million, eight hundred forty thousand, eight hundred twelve".