2013227161 has 9 divisors (see below), whose sum is σ = 2213428693. Its totient is φ = 1829757820.

The previous prime is 2013227147. The next prime is 2013227173. The reversal of 2013227161 is 1617223102.

It is a happy number.

The square root of 2013227161 is 44869.

It is a perfect power (a square), and thus also a powerful number.

It is not a de Polignac number, because 2013227161 - 2¹¹ = 2013225113 is a prime.

It is a super-3 number, since 3×2013227161³ (a number of 29 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2013227131) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 491520 + ... + 495598.

Almost surely, 2^2013227161 is an apocalyptic number.

2013227161 is the 44869-th square number.

2013227161 is the 22435-th centered octagonal number.

It is an amenable number.

2013227161 is a deficient number, since it is larger than the sum of its proper divisors (200201532).

2013227161 is an frugal number, since it uses more digits than its factorization.

2013227161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8180 (or 4090 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 25.

The cubic root of 2013227161 is about 1262.6924789173.

Multiplying 2013227161 by its sum of digits (25), we get a square (50330679025 = 224345²).

The spelling of 2013227161 in words is "two billion, thirteen million, two hundred twenty-seven thousand, one hundred sixty-one".