123533532 has 24 divisors (see below), whose sum is σ = 320272400. Its totient is φ = 41177808.

The previous prime is 123533507. The next prime is 123533549. The reversal of 123533532 is 235335321.

123533532 is a `hidden beast` number, since 123 + 5 + 3 + 3 + 532 = 666.

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

It is a junction number, because it is equal to n+sod(n) for n = 123533496 and 123533505.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 571807 + ... + 572022.

Almost surely, 2^123533532 is an apocalyptic number.

123533532 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

123533532 is an abundant number, since it is smaller than the sum of its proper divisors (196738868).

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

123533532 is a wasteful number, since it uses less digits than its factorization.

123533532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1143842 (or 1143834 counting only the distinct ones).

The product of its digits is 8100, while the sum is 27.

The square root of 123533532 is about 11114.5639590584. The cubic root of 123533532 is about 498.0370127810.

Adding to 123533532 its reverse (235335321), we get a palindrome (358868853).

The spelling of 123533532 in words is "one hundred twenty-three million, five hundred thirty-three thousand, five hundred thirty-two".