164550241 has 4 divisors (see below), whose sum is σ = 173210800. Its totient is φ = 155889684.

The previous prime is 164550229. The next prime is 164550283. The reversal of 164550241 is 142055461.

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: 142055461 = 1429 ⋅99409.

It is a cyclic number.

It is not a de Polignac number, because 164550241 - 2¹¹ = 164548193 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (164550641) 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, 4330251 + ... + 4330288.

It is an arithmetic number, because the mean of its divisors is an integer number (43302700).

Almost surely, 2^164550241 is an apocalyptic number.

It is an amenable number.

164550241 is a deficient number, since it is larger than the sum of its proper divisors (8660559).

164550241 is an equidigital number, since it uses as much as digits as its factorization.

164550241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8660558.

The product of its (nonzero) digits is 4800, while the sum is 28.

The square root of 164550241 is about 12827.7137869536. The cubic root of 164550241 is about 547.9818500125.

The spelling of 164550241 in words is "one hundred sixty-four million, five hundred fifty thousand, two hundred forty-one".