164000649 has 16 divisors (see below), whose sum is σ = 241598592. Its totient is φ = 98427648.

The previous prime is 164000621. The next prime is 164000651. The reversal of 164000649 is 946000461.

164000649 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 164000649 - 2¹³ = 163992457 is a prime.

It is not an unprimeable number, because it can be changed into a prime (164000689) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 68734 + ... + 71079.

It is an arithmetic number, because the mean of its divisors is an integer number (15099912).

Almost surely, 2^164000649 is an apocalyptic number.

It is an amenable number.

164000649 is a deficient number, since it is larger than the sum of its proper divisors (77597943).

164000649 is a wasteful number, since it uses less digits than its factorization.

164000649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139856.

The product of its (nonzero) digits is 5184, while the sum is 30.

The square root of 164000649 is about 12806.2738140335. The cubic root of 164000649 is about 547.3710895183.

The spelling of 164000649 in words is "one hundred sixty-four million, six hundred forty-nine", and thus it is an aban number.