1223408126548 has 24 divisors (see below), whose sum is σ = 2256168942720. Its totient is φ = 579315079200.

The previous prime is 1223408126519. The next prime is 1223408126569. The reversal of 1223408126548 is 8456218043221.

It is a Harshad number since it is a multiple of its sum of digits (46).

It is a junction number, because it is equal to n+sod(n) for n = 1223408126498 and 1223408126507.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 65821968 + ... + 65840551.

It is an arithmetic number, because the mean of its divisors is an integer number (94007039280).

Almost surely, 2^{1223408126548} is an apocalyptic number.

It is an amenable number.

1223408126548 is a deficient number, since it is larger than the sum of its proper divisors (1032760816172).

1223408126548 is a wasteful number, since it uses less digits than its factorization.

1223408126548 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131662647 (or 131662645 counting only the distinct ones).

The product of its (nonzero) digits is 737280, while the sum is 46.

The spelling of 1223408126548 in words is "one trillion, two hundred twenty-three billion, four hundred eight million, one hundred twenty-six thousand, five hundred forty-eight".