4140523 has 4 divisors (see below), whose sum is σ = 4144608. Its totient is φ = 4136440.

The previous prime is 4140511. The next prime is 4140557. The reversal of 4140523 is 3250414.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 3250414 = 2 ⋅1625207.

It is a cyclic number.

It is not a de Polignac number, because 4140523 - 2¹⁷ = 4009451 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 4140523.

It is not an unprimeable number, because it can be changed into a prime (4140623) 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, 765 + ... + 2977.

It is an arithmetic number, because the mean of its divisors is an integer number (1036152).

Almost surely, 2^4140523 is an apocalyptic number.

4140523 is a deficient number, since it is larger than the sum of its proper divisors (4085).

4140523 is a wasteful number, since it uses less digits than its factorization.

4140523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4084.

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 4140523 is about 2034.8275111173. The cubic root of 4140523 is about 160.5776386379.

Adding to 4140523 its reverse (3250414), we get a palindrome (7390937).

The spelling of 4140523 in words is "four million, one hundred forty thousand, five hundred twenty-three".