12537745 has 16 divisors (see below), whose sum is σ = 16495488. Its totient is φ = 9072640.

The previous prime is 12537727. The next prime is 12537751. The reversal of 12537745 is 54773521.

It is not a de Polignac number, because 12537745 - 2⁵ = 12537713 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12537745.

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, 13692 + ... + 14578.

It is an arithmetic number, because the mean of its divisors is an integer number (1030968).

Almost surely, 2^12537745 is an apocalyptic number.

It is an amenable number.

12537745 is a deficient number, since it is larger than the sum of its proper divisors (3957743).

12537745 is a wasteful number, since it uses less digits than its factorization.

12537745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1160.

The product of its digits is 29400, while the sum is 34.

The square root of 12537745 is about 3540.8678314786. The cubic root of 12537745 is about 232.3128026465.

It can be divided in two parts, 1253 and 7745, that added together give a palindrome (8998).

The spelling of 12537745 in words is "twelve million, five hundred thirty-seven thousand, seven hundred forty-five".