165227141 has 4 divisors (see below), whose sum is σ = 166831392. Its totient is φ = 163622892.

The previous prime is 165227119. The next prime is 165227149. The reversal of 165227141 is 141722561.

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.

It is a cyclic number.

It is not a de Polignac number, because 165227141 - 2⁶ = 165227077 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 (165227149) 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, 801971 + ... + 802176.

It is an arithmetic number, because the mean of its divisors is an integer number (41707848).

Almost surely, 2^165227141 is an apocalyptic number.

It is an amenable number.

165227141 is a deficient number, since it is larger than the sum of its proper divisors (1604251).

165227141 is a wasteful number, since it uses less digits than its factorization.

165227141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1604250.

The product of its digits is 3360, while the sum is 29.

The square root of 165227141 is about 12854.0709893792. The cubic root of 165227141 is about 548.7322215482.

The spelling of 165227141 in words is "one hundred sixty-five million, two hundred twenty-seven thousand, one hundred forty-one".