164238841 has 8 divisors (see below), whose sum is σ = 177015104. Its totient is φ = 151482960.

The previous prime is 164238829. The next prime is 164238847. The reversal of 164238841 is 148832461.

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 164238841 - 2¹⁹ = 163714553 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 164238841.

It is not an unprimeable number, because it can be changed into a prime (164238847) 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, 14446 + ... + 23176.

It is an arithmetic number, because the mean of its divisors is an integer number (22126888).

Almost surely, 2^164238841 is an apocalyptic number.

It is an amenable number.

164238841 is a deficient number, since it is larger than the sum of its proper divisors (12776263).

164238841 is a wasteful number, since it uses less digits than its factorization.

164238841 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10191.

The product of its digits is 36864, while the sum is 37.

The square root of 164238841 is about 12815.5702565278. The cubic root of 164238841 is about 547.6359590902.

The spelling of 164238841 in words is "one hundred sixty-four million, two hundred thirty-eight thousand, eight hundred forty-one".