12542164 has 12 divisors (see below), whose sum is σ = 21973588. Its totient is φ = 6264000.

The previous prime is 12542143. The next prime is 12542177. The reversal of 12542164 is 46124521.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 501264 + 12040900 = 708^2 + 3470^2 .

It is a hoax number, since the sum of its digits (25) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6064 + ... + 7864.

Almost surely, 2^12542164 is an apocalyptic number.

It is an amenable number.

12542164 is a deficient number, since it is larger than the sum of its proper divisors (9431424).

12542164 is a wasteful number, since it uses less digits than its factorization.

12542164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3546 (or 3544 counting only the distinct ones).

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

The square root of 12542164 is about 3541.4917760740. The cubic root of 12542164 is about 232.3400927663.

Adding to 12542164 its reverse (46124521), we get a palindrome (58666685).

The spelling of 12542164 in words is "twelve million, five hundred forty-two thousand, one hundred sixty-four".