12547345 has 8 divisors (see below), whose sum is σ = 15157440. Its totient is φ = 9970800.

The previous prime is 12547321. The next prime is 12547349. The reversal of 12547345 is 54374521.

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

It is a de Polignac number, because none of the positive numbers 2^k-12547345 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12547349) 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, 7555 + ... + 9064.

It is an arithmetic number, because the mean of its divisors is an integer number (1894680).

Almost surely, 2^12547345 is an apocalyptic number.

It is an amenable number.

12547345 is a deficient number, since it is larger than the sum of its proper divisors (2610095).

12547345 is a wasteful number, since it uses less digits than its factorization.

12547345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16775.

The product of its digits is 16800, while the sum is 31.

The square root of 12547345 is about 3542.2231719642. The cubic root of 12547345 is about 232.3720805558.

The spelling of 12547345 in words is "twelve million, five hundred forty-seven thousand, three hundred forty-five".