1228275126 has 96 divisors (see below), whose sum is σ = 3059023968. Its totient is φ = 352834560.

The previous prime is 1228275107. The next prime is 1228275127. The reversal of 1228275126 is 6215728221.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1228275127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 519940 + ... + 522296.

It is an arithmetic number, because the mean of its divisors is an integer number (31864833).

Almost surely, 2^1228275126 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1228275126, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1529511984).

1228275126 is an abundant number, since it is smaller than the sum of its proper divisors (1830748842).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1228275126 is a wasteful number, since it uses less digits than its factorization.

1228275126 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2526 (or 2523 counting only the distinct ones).

The product of its digits is 26880, while the sum is 36.

The square root of 1228275126 is about 35046.7562835707. The cubic root of 1228275126 is about 1070.9401949621.

The spelling of 1228275126 in words is "one billion, two hundred twenty-eight million, two hundred seventy-five thousand, one hundred twenty-six".