123228544 has 32 divisors (see below), whose sum is σ = 249175800. Its totient is φ = 60690432.

The previous prime is 123228541. The next prime is 123228559. The reversal of 123228544 is 445822321.

It is a tau number, because it is divible by the number of its divisors (32).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123228541) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1392 + ... + 15760.

Almost surely, 2^123228544 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 123228544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (124587900).

123228544 is an abundant number, since it is smaller than the sum of its proper divisors (125947256).

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

123228544 is an equidigital number, since it uses as much as digits as its factorization.

123228544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14450 (or 14438 counting only the distinct ones).

The product of its digits is 15360, while the sum is 31.

The square root of 123228544 is about 11100.8352838874. The cubic root of 123228544 is about 497.6268124495.

The spelling of 123228544 in words is "one hundred twenty-three million, two hundred twenty-eight thousand, five hundred forty-four".