12541615 has 16 divisors (see below), whose sum is σ = 16017120. Its totient is φ = 9400320.

The previous prime is 12541603. The next prime is 12541637. The reversal of 12541615 is 51614521.

It is a happy number.

It is not a de Polignac number, because 12541615 - 2⁹ = 12541103 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12541615.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8535 + ... + 9895.

It is an arithmetic number, because the mean of its divisors is an integer number (1001070).

Almost surely, 2^12541615 is an apocalyptic number.

12541615 is a deficient number, since it is larger than the sum of its proper divisors (3475505).

12541615 is a wasteful number, since it uses less digits than its factorization.

12541615 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1482.

The product of its digits is 1200, while the sum is 25.

The square root of 12541615 is about 3541.4142655160. The cubic root of 12541615 is about 232.3367026928.

The spelling of 12541615 in words is "twelve million, five hundred forty-one thousand, six hundred fifteen".