1612123228 has 24 divisors (see below), whose sum is σ = 2839780944. Its totient is φ = 800774400.

The previous prime is 1612123223. The next prime is 1612123237. The reversal of 1612123228 is 8223212161.

It is a junction number, because it is equal to n+sod(n) for n = 1612123196 and 1612123205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1612123223) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 448398 + ... + 451978.

It is an arithmetic number, because the mean of its divisors is an integer number (118324206).

Almost surely, 2^1612123228 is an apocalyptic number.

It is an amenable number.

1612123228 is a deficient number, since it is larger than the sum of its proper divisors (1227657716).

1612123228 is a wasteful number, since it uses less digits than its factorization.

1612123228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4293 (or 4291 counting only the distinct ones).

The product of its digits is 2304, while the sum is 28.

The square root of 1612123228 is about 40151.2543764202. The cubic root of 1612123228 is about 1172.5537100614.

Adding to 1612123228 its reverse (8223212161), we get a palindrome (9835335389).

The spelling of 1612123228 in words is "one billion, six hundred twelve million, one hundred twenty-three thousand, two hundred twenty-eight".