12537145 has 8 divisors (see below), whose sum is σ = 15137856. Its totient is φ = 9967536.

The previous prime is 12537121. The next prime is 12537149. The reversal of 12537145 is 54173521.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12537145 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12537149) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6877 + ... + 8506.

It is an arithmetic number, because the mean of its divisors is an integer number (1892232).

Almost surely, 2^12537145 is an apocalyptic number.

It is an amenable number.

12537145 is a deficient number, since it is larger than the sum of its proper divisors (2600711).

12537145 is a wasteful number, since it uses less digits than its factorization.

12537145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15551.

The product of its digits is 4200, while the sum is 28.

The square root of 12537145 is about 3540.7831054726. The cubic root of 12537145 is about 232.3090967726.

The spelling of 12537145 in words is "twelve million, five hundred thirty-seven thousand, one hundred forty-five".