123526540 has 12 divisors (see below), whose sum is σ = 259405776. Its totient is φ = 49410608.

The previous prime is 123526531. The next prime is 123526541. The reversal of 123526540 is 45625321.

It is a junction number, because it is equal to n+sod(n) for n = 123526499 and 123526508.

It is not an unprimeable number, because it can be changed into a prime (123526541) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3088144 + ... + 3088183.

It is an arithmetic number, because the mean of its divisors is an integer number (21617148).

Almost surely, 2^123526540 is an apocalyptic number.

123526540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

123526540 is an abundant number, since it is smaller than the sum of its proper divisors (135879236).

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

123526540 is a wasteful number, since it uses less digits than its factorization.

123526540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6176336 (or 6176334 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 28.

The square root of 123526540 is about 11114.2494123535. The cubic root of 123526540 is about 498.0276163026.

The spelling of 123526540 in words is "one hundred twenty-three million, five hundred twenty-six thousand, five hundred forty".