1601165227 has 8 divisors (see below), whose sum is σ = 1617408000. Its totient is φ = 1584946344.

The previous prime is 1601165177. The next prime is 1601165261. The reversal of 1601165227 is 7225611061.

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 1601165227 - 2⁷ = 1601165099 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1601165297) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 148774 + ... + 159172.

It is an arithmetic number, because the mean of its divisors is an integer number (202176000).

Almost surely, 2^1601165227 is an apocalyptic number.

1601165227 is a deficient number, since it is larger than the sum of its proper divisors (16242773).

1601165227 is a wasteful number, since it uses less digits than its factorization.

1601165227 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11945.

The product of its (nonzero) digits is 5040, while the sum is 31.

The square root of 1601165227 is about 40014.5626866020. The cubic root of 1601165227 is about 1169.8909550892.

Adding to 1601165227 its reverse (7225611061), we get a palindrome (8826776288).

The spelling of 1601165227 in words is "one billion, six hundred one million, one hundred sixty-five thousand, two hundred twenty-seven".