1224605161 has 16 divisors (see below), whose sum is σ = 1332289728. Its totient is φ = 1118894400.

The previous prime is 1224605159. The next prime is 1224605171. The reversal of 1224605161 is 1615064221.

It is not a de Polignac number, because 1224605161 - 2¹ = 1224605159 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1224605131) 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, 947926 + ... + 949216.

It is an arithmetic number, because the mean of its divisors is an integer number (83268108).

Almost surely, 2^1224605161 is an apocalyptic number.

It is an amenable number.

1224605161 is a deficient number, since it is larger than the sum of its proper divisors (107684567).

1224605161 is a wasteful number, since it uses less digits than its factorization.

1224605161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1992.

The product of its (nonzero) digits is 2880, while the sum is 28.

The square root of 1224605161 is about 34994.3589882712. The cubic root of 1224605161 is about 1069.8725096304.

Adding to 1224605161 its reverse (1615064221), we get a palindrome (2839669382).

The spelling of 1224605161 in words is "one billion, two hundred twenty-four million, six hundred five thousand, one hundred sixty-one".