164845149 has 16 divisors (see below), whose sum is σ = 251712000. Its totient is φ = 94002480.

The previous prime is 164845129. The next prime is 164845157. The reversal of 164845149 is 941548461.

It is not a de Polignac number, because 164845149 - 2¹⁵ = 164812381 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 164845149.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164845129) 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, 2614 + ... + 18344.

It is an arithmetic number, because the mean of its divisors is an integer number (15732000).

Almost surely, 2^164845149 is an apocalyptic number.

It is an amenable number.

164845149 is a deficient number, since it is larger than the sum of its proper divisors (86866851).

164845149 is a wasteful number, since it uses less digits than its factorization.

164845149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16240.

The product of its digits is 138240, while the sum is 42.

The square root of 164845149 is about 12839.2035967968. The cubic root of 164845149 is about 548.3090201698.

The spelling of 164845149 in words is "one hundred sixty-four million, eight hundred forty-five thousand, one hundred forty-nine".