164089049 has 8 divisors (see below), whose sum is σ = 174129768. Its totient is φ = 154091520.

The previous prime is 164089019. The next prime is 164089063. The reversal of 164089049 is 940980461.

It can be written as a sum of positive squares in 4 ways, for example, as 95199049 + 68890000 = 9757^2 + 8300^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 164089049 - 2²⁰ = 163040473 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 164088997 and 164089015.

It is not an unprimeable number, because it can be changed into a prime (164089019) 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, 2792 + ... + 18329.

It is an arithmetic number, because the mean of its divisors is an integer number (21766221).

Almost surely, 2^164089049 is an apocalyptic number.

It is an amenable number.

164089049 is a deficient number, since it is larger than the sum of its proper divisors (10040719).

164089049 is a wasteful number, since it uses less digits than its factorization.

164089049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21595.

The product of its (nonzero) digits is 62208, while the sum is 41.

The square root of 164089049 is about 12809.7247823675. The cubic root of 164089049 is about 547.4694202529.

The spelling of 164089049 in words is "one hundred sixty-four million, eighty-nine thousand, forty-nine".