165190141 has 4 divisors (see below), whose sum is σ = 167046300. Its totient is φ = 163333984.

The previous prime is 165190097. The next prime is 165190153. The reversal of 165190141 is 141091561.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 17056900 + 148133241 = 4130^2 + 12171^2 .

It is a cyclic number.

It is not a de Polignac number, because 165190141 - 2¹⁵ = 165157373 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 (165190741) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 927946 + ... + 928123.

It is an arithmetic number, because the mean of its divisors is an integer number (41761575).

Almost surely, 2^165190141 is an apocalyptic number.

It is an amenable number.

165190141 is a deficient number, since it is larger than the sum of its proper divisors (1856159).

165190141 is an equidigital number, since it uses as much as digits as its factorization.

165190141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1856158.

The product of its (nonzero) digits is 1080, while the sum is 28.

The square root of 165190141 is about 12852.6316760421. The cubic root of 165190141 is about 548.6912585285.

The spelling of 165190141 in words is "one hundred sixty-five million, one hundred ninety thousand, one hundred forty-one".