123455225444 has 12 divisors (see below), whose sum is σ = 216057412284. Its totient is φ = 61724536224.

The previous prime is 123455225429. The next prime is 123455225461. The reversal of 123455225444 is 444522554321.

It can be written as a sum of positive squares in 2 ways, for example, as 78477299044 + 44977926400 = 280138^2 + 212080^2 .

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 677627 + ... + 840290.

It is an arithmetic number, because the mean of its divisors is an integer number (18004784357).

Almost surely, 2^123455225444 is an apocalyptic number.

It is an amenable number.

123455225444 is a deficient number, since it is larger than the sum of its proper divisors (92602186840).

123455225444 is a wasteful number, since it uses less digits than its factorization.

123455225444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1538254 (or 1538252 counting only the distinct ones).

The product of its digits is 768000, while the sum is 41.

Adding to 123455225444 its reverse (444522554321), we get a palindrome (567977779765).

The spelling of 123455225444 in words is "one hundred twenty-three billion, four hundred fifty-five million, two hundred twenty-five thousand, four hundred forty-four".