164741 has 4 divisors (see below), whose sum is σ = 165984. Its totient is φ = 163500.

The previous prime is 164729. The next prime is 164743. The reversal of 164741 is 147461.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 147461 = 167 ⋅883.

It is a cyclic number.

It is not a de Polignac number, because 164741 - 2⁶ = 164677 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164743) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 395 + ... + 696.

It is an arithmetic number, because the mean of its divisors is an integer number (41496).

2¹⁶⁴⁷⁴¹ is an apocalyptic number.

It is an amenable number.

164741 is a deficient number, since it is larger than the sum of its proper divisors (1243).

164741 is a wasteful number, since it uses less digits than its factorization.

164741 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1242.

The product of its digits is 672, while the sum is 23.

The square root of 164741 is about 405.8829880643. The cubic root of 164741 is about 54.8193522146.

The spelling of 164741 in words is "one hundred sixty-four thousand, seven hundred forty-one".