12542141 has 4 divisors (see below), whose sum is σ = 13279932. Its totient is φ = 11804352.

The previous prime is 12542137. The next prime is 12542143. The reversal of 12542141 is 14124521.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 4218916 + 8323225 = 2054^2 + 2885^2 .

It is a cyclic number.

It is not a de Polignac number, because 12542141 - 2² = 12542137 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12542143) 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, 368870 + ... + 368903.

It is an arithmetic number, because the mean of its divisors is an integer number (3319983).

Almost surely, 2^12542141 is an apocalyptic number.

It is an amenable number.

12542141 is a deficient number, since it is larger than the sum of its proper divisors (737791).

12542141 is an equidigital number, since it uses as much as digits as its factorization.

12542141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 737790.

The product of its digits is 320, while the sum is 20.

The square root of 12542141 is about 3541.4885288534. The cubic root of 12542141 is about 232.3399507433.

Adding to 12542141 its reverse (14124521), we get a palindrome (26666662).

It can be divided in two parts, 125 and 42141, that multiplied together give a palindrome (5267625).

The spelling of 12542141 in words is "twelve million, five hundred forty-two thousand, one hundred forty-one".