12542015 has 16 divisors (see below), whose sum is σ = 15814656. Its totient is φ = 9530400.

The previous prime is 12541999. The next prime is 12542017. The reversal of 12542015 is 51024521.

It is not a de Polignac number, because 12542015 - 2⁴ = 12541999 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 (12542017) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21680 + ... + 22250.

It is an arithmetic number, because the mean of its divisors is an integer number (988416).

Almost surely, 2^12542015 is an apocalyptic number.

12542015 is a deficient number, since it is larger than the sum of its proper divisors (3272641).

12542015 is a wasteful number, since it uses less digits than its factorization.

12542015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 790.

The product of its (nonzero) digits is 400, while the sum is 20.

The square root of 12542015 is about 3541.4707396786. The cubic root of 12542015 is about 232.3391727015.

Adding to 12542015 its reverse (51024521), we get a palindrome (63566536).

The spelling of 12542015 in words is "twelve million, five hundred forty-two thousand, fifteen".