123528427 has 16 divisors (see below), whose sum is σ = 137389824. Its totient is φ = 110124000.

The previous prime is 123528421. The next prime is 123528497. The reversal of 123528427 is 724825321.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 123528427 - 2¹⁹ = 123004139 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 123528392 and 123528401.

It is not an unprimeable number, because it can be changed into a prime (123528421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 216052 + ... + 216622.

It is an arithmetic number, because the mean of its divisors is an integer number (8586864).

Almost surely, 2^123528427 is an apocalyptic number.

123528427 is a deficient number, since it is larger than the sum of its proper divisors (13861397).

123528427 is a wasteful number, since it uses less digits than its factorization.

123528427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 930.

The product of its digits is 26880, while the sum is 34.

The square root of 123528427 is about 11114.3343030521. The cubic root of 123528427 is about 498.0301522579.

The spelling of 123528427 in words is "one hundred twenty-three million, five hundred twenty-eight thousand, four hundred twenty-seven".