12542154 has 32 divisors (see below), whose sum is σ = 25907904. Its totient is φ = 4045440.

The previous prime is 12542143. The next prime is 12542177. The reversal of 12542154 is 45124521.

It is a Curzon 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 15 ways as a sum of consecutive naturals, for example, 44494 + ... + 44774.

It is an arithmetic number, because the mean of its divisors is an integer number (809622).

Almost surely, 2^12542154 is an apocalyptic number.

12542154 is an abundant number, since it is smaller than the sum of its proper divisors (13365750).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12542154 is a wasteful number, since it uses less digits than its factorization.

12542154 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 502.

The product of its digits is 1600, while the sum is 24.

The square root of 12542154 is about 3541.4903642393. The cubic root of 12542154 is about 232.3400310172.

Adding to 12542154 its reverse (45124521), we get a palindrome (57666675).

The spelling of 12542154 in words is "twelve million, five hundred forty-two thousand, one hundred fifty-four".