123046540 has 24 divisors (see below), whose sum is σ = 258733440. Its totient is φ = 49154688.

The previous prime is 123046523. The next prime is 123046589. The reversal of 123046540 is 45640321.

It is an unprimeable number.

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, 13696 + ... + 20824.

It is an arithmetic number, because the mean of its divisors is an integer number (10780560).

Almost surely, 2^123046540 is an apocalyptic number.

123046540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

123046540 is an abundant number, since it is smaller than the sum of its proper divisors (135686900).

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

123046540 is a wasteful number, since it uses less digits than its factorization.

123046540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8001 (or 7999 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 123046540 is about 11092.6344932122. The cubic root of 123046540 is about 497.3816996058.

Adding to 123046540 its reverse (45640321), we get a palindrome (168686861).

The spelling of 123046540 in words is "one hundred twenty-three million, forty-six thousand, five hundred forty".