165814941 has 4 divisors (see below), whose sum is σ = 221086592. Its totient is φ = 110543292.

The previous prime is 165814927. The next prime is 165814963. The reversal of 165814941 is 149418561.

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: 149418561 = 3 ⋅49806187.

It is not a de Polignac number, because 165814941 - 2⁷ = 165814813 is a prime.

It is an alternating number because its digits alternate between odd and even.

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 165814941.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (165814541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27635821 + ... + 27635826.

It is an arithmetic number, because the mean of its divisors is an integer number (55271648).

Almost surely, 2^165814941 is an apocalyptic number.

It is an amenable number.

165814941 is a deficient number, since it is larger than the sum of its proper divisors (55271651).

165814941 is an equidigital number, since it uses as much as digits as its factorization.

165814941 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55271650.

The product of its digits is 34560, while the sum is 39.

The square root of 165814941 is about 12876.9150420433. The cubic root of 165814941 is about 549.3821613115.

The spelling of 165814941 in words is "one hundred sixty-five million, eight hundred fourteen thousand, nine hundred forty-one".