12142523 has 4 divisors (see below), whose sum is σ = 12262848. Its totient is φ = 12022200.

The previous prime is 12142517. The next prime is 12142531. The reversal of 12142523 is 32524121.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12142523 - 2¹⁰ = 12141499 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12142495 and 12142504.

It is not an unprimeable number, because it can be changed into a prime (12142513) 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, 60011 + ... + 60212.

It is an arithmetic number, because the mean of its divisors is an integer number (3065712).

Almost surely, 2^12142523 is an apocalyptic number.

12142523 is a deficient number, since it is larger than the sum of its proper divisors (120325).

12142523 is a wasteful number, since it uses less digits than its factorization.

12142523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120324.

The product of its digits is 480, while the sum is 20.

The square root of 12142523 is about 3484.6123170304. The cubic root of 12142523 is about 229.8456620525.

Adding to 12142523 its reverse (32524121), we get a palindrome (44666644).

The spelling of 12142523 in words is "twelve million, one hundred forty-two thousand, five hundred twenty-three".