12542146 has 8 divisors (see below), whose sum is σ = 19272204. Its totient is φ = 6118080.

The previous prime is 12542143. The next prime is 12542177. The reversal of 12542146 is 64124521.

It is a happy number.

12542146 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 10017225 + 2524921 = 3165^2 + 1589^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 12542146.

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, 76395 + ... + 76558.

Almost surely, 2^12542146 is an apocalyptic number.

12542146 is a deficient number, since it is larger than the sum of its proper divisors (6730058).

12542146 is a wasteful number, since it uses less digits than its factorization.

12542146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 152996.

The product of its digits is 1920, while the sum is 25.

The square root of 12542146 is about 3541.4892347712. The cubic root of 12542146 is about 232.3399816179.

Adding to 12542146 its reverse (64124521), we get a palindrome (76666667).

The spelling of 12542146 in words is "twelve million, five hundred forty-two thousand, one hundred forty-six".