123150520 has 32 divisors (see below), whose sum is σ = 277876800. Its totient is φ = 49120128.

The previous prime is 123150479. The next prime is 123150527. The reversal of 123150520 is 25051321.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123150527) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10486 + ... + 18874.

It is an arithmetic number, because the mean of its divisors is an integer number (8683650).

Almost surely, 2^123150520 is an apocalyptic number.

123150520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

123150520 is an abundant number, since it is smaller than the sum of its proper divisors (154726280).

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

123150520 is a wasteful number, since it uses less digits than its factorization.

123150520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8767 (or 8763 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 19.

The square root of 123150520 is about 11097.3203972851. The cubic root of 123150520 is about 497.5217636498.

The spelling of 123150520 in words is "one hundred twenty-three million, one hundred fifty thousand, five hundred twenty".