42528123 has 24 divisors (see below), whose sum is σ = 69329520. Its totient is φ = 24884160.

The previous prime is 42528119. The next prime is 42528139. The reversal of 42528123 is 32182524.

It is not a de Polignac number, because 42528123 - 2² = 42528119 is a prime.

It is not an unprimeable number, because it can be changed into a prime (42528523) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4536 + ... + 10277.

It is an arithmetic number, because the mean of its divisors is an integer number (2888730).

Almost surely, 2^42528123 is an apocalyptic number.

42528123 is a deficient number, since it is larger than the sum of its proper divisors (26801397).

42528123 is a wasteful number, since it uses less digits than its factorization.

42528123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14859 (or 14856 counting only the distinct ones).

The product of its digits is 3840, while the sum is 27.

The square root of 42528123 is about 6521.3589841382. The cubic root of 42528123 is about 349.0535600319.

The spelling of 42528123 in words is "forty-two million, five hundred twenty-eight thousand, one hundred twenty-three".