1223338161 has 16 divisors (see below), whose sum is σ = 1740491840. Its totient is φ = 762048000.

The previous prime is 1223338153. The next prime is 1223338163. The reversal of 1223338161 is 1618333221.

It is not a de Polignac number, because 1223338161 - 2³ = 1223338153 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1223338163) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 142840 + ... + 151161.

It is an arithmetic number, because the mean of its divisors is an integer number (108780740).

Almost surely, 2^1223338161 is an apocalyptic number.

It is an amenable number.

1223338161 is a deficient number, since it is larger than the sum of its proper divisors (517153679).

1223338161 is a wasteful number, since it uses less digits than its factorization.

1223338161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 294096.

The product of its digits is 5184, while the sum is 30.

The square root of 1223338161 is about 34976.2513857617. The cubic root of 1223338161 is about 1069.5034120994.

The spelling of 1223338161 in words is "one billion, two hundred twenty-three million, three hundred thirty-eight thousand, one hundred sixty-one".