123520576 has 56 divisors (see below), whose sum is σ = 251359416. Its totient is φ = 60211200.

The previous prime is 123520531. The next prime is 123520583. The reversal of 123520576 is 675025321.

It can be written as a sum of positive squares in 4 ways, for example, as 85377600 + 38142976 = 9240^2 + 6176^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 626910 + ... + 627106.

It is an arithmetic number, because the mean of its divisors is an integer number (4488561).

Almost surely, 2^123520576 is an apocalyptic number.

123520576 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 123520576, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (125679708).

123520576 is an abundant number, since it is smaller than the sum of its proper divisors (127838840).

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

123520576 is a wasteful number, since it uses less digits than its factorization.

123520576 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 407 (or 397 counting only the distinct ones).

The product of its (nonzero) digits is 12600, while the sum is 31.

The square root of 123520576 is about 11113.9811048967. The cubic root of 123520576 is about 498.0196010629.

Adding to 123520576 its reverse (675025321), we get a palindrome (798545897).

The spelling of 123520576 in words is "one hundred twenty-three million, five hundred twenty thousand, five hundred seventy-six".