123520452 has 24 divisors (see below), whose sum is σ = 314416032. Its totient is φ = 37430400.

The previous prime is 123520451. The next prime is 123520457. The reversal of 123520452 is 254025321.

It is not an unprimeable number, because it can be changed into a prime (123520451) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 467749 + ... + 468012.

It is an arithmetic number, because the mean of its divisors is an integer number (13100668).

Almost surely, 2^123520452 is an apocalyptic number.

123520452 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

123520452 is an abundant number, since it is smaller than the sum of its proper divisors (190895580).

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

123520452 is a wasteful number, since it uses less digits than its factorization.

123520452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 935779 (or 935777 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 24.

The square root of 123520452 is about 11113.9755263362. The cubic root of 123520452 is about 498.0194344120.

Adding to 123520452 its reverse (254025321), we get a palindrome (377545773).

The spelling of 123520452 in words is "one hundred twenty-three million, five hundred twenty thousand, four hundred fifty-two".