123532560 has 80 divisors (see below), whose sum is σ = 425508480. Its totient is φ = 32941440.

The previous prime is 123532543. The next prime is 123532561. The reversal of 123532560 is 65235321.

123532560 is a `hidden beast` number, since 123 + 532 + 5 + 6 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123532561) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26436 + ... + 30755.

It is an arithmetic number, because the mean of its divisors is an integer number (5318856).

Almost surely, 2^123532560 is an apocalyptic number.

123532560 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

123532560 is an abundant number, since it is smaller than the sum of its proper divisors (301975920).

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

123532560 is a wasteful number, since it uses less digits than its factorization.

123532560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57213 (or 57201 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 27.

The square root of 123532560 is about 11114.5202325606. The cubic root of 123532560 is about 498.0357065413.

Adding to 123532560 its reverse (65235321), we get a palindrome (188767881).

The spelling of 123532560 in words is "one hundred twenty-three million, five hundred thirty-two thousand, five hundred sixty".