123354520 has 32 divisors (see below), whose sum is σ = 289617120. Its totient is φ = 47196160.

The previous prime is 123354503. The next prime is 123354541. The reversal of 123354520 is 25453321.

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, 66121 + ... + 67960.

It is an arithmetic number, because the mean of its divisors is an integer number (9050535).

Almost surely, 2^123354520 is an apocalyptic number.

123354520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

123354520 is an abundant number, since it is smaller than the sum of its proper divisors (166262600).

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

123354520 is a wasteful number, since it uses less digits than its factorization.

123354520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134115 (or 134111 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 25.

The square root of 123354520 is about 11106.5080020680. The cubic root of 123354520 is about 497.7963285999.

The spelling of 123354520 in words is "one hundred twenty-three million, three hundred fifty-four thousand, five hundred twenty".