12534142 has 4 divisors (see below), whose sum is σ = 18801216. Its totient is φ = 6267070.

The previous prime is 12534133. The next prime is 12534143. The reversal of 12534142 is 24143521.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 24143521 = 797 ⋅30293.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12534143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3133534 + ... + 3133537.

It is an arithmetic number, because the mean of its divisors is an integer number (4700304).

Almost surely, 2^12534142 is an apocalyptic number.

12534142 is a deficient number, since it is larger than the sum of its proper divisors (6267074).

12534142 is an equidigital number, since it uses as much as digits as its factorization.

12534142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6267073.

The product of its digits is 960, while the sum is 22.

The square root of 12534142 is about 3540.3590213423. The cubic root of 12534142 is about 232.2905470968.

Adding to 12534142 its reverse (24143521), we get a palindrome (36677663).

The spelling of 12534142 in words is "twelve million, five hundred thirty-four thousand, one hundred forty-two".