4142523 has 32 divisors (see below), whose sum is σ = 7004160. Its totient is φ = 2115360.

The previous prime is 4142521. The next prime is 4142569. The reversal of 4142523 is 3252414.

It is not a de Polignac number, because 4142523 - 2¹ = 4142521 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a self number, because there is not a number n which added to its sum of digits gives 4142523.

It is not an unprimeable number, because it can be changed into a prime (4142521) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 18136 + ... + 18362.

It is an arithmetic number, because the mean of its divisors is an integer number (218880).

Almost surely, 2^4142523 is an apocalyptic number.

4142523 is a deficient number, since it is larger than the sum of its proper divisors (2861637).

4142523 is a wasteful number, since it uses less digits than its factorization.

4142523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 327.

The product of its digits is 960, while the sum is 21.

The square root of 4142523 is about 2035.3188939328. The cubic root of 4142523 is about 160.6034891228.

Adding to 4142523 its reverse (3252414), we get a palindrome (7394937).

The spelling of 4142523 in words is "four million, one hundred forty-two thousand, five hundred twenty-three".