12570345 has 24 divisors (see below), whose sum is σ = 22493952. Its totient is φ = 6487200.

The previous prime is 12570329. The next prime is 12570347. The reversal of 12570345 is 54307521.

It is a happy number.

It is not a de Polignac number, because 12570345 - 2⁴ = 12570329 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (12570347) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3111 + ... + 5900.

It is an arithmetic number, because the mean of its divisors is an integer number (937248).

Almost surely, 2^12570345 is an apocalyptic number.

12570345 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12570345 is a deficient number, since it is larger than the sum of its proper divisors (9923607).

12570345 is a wasteful number, since it uses less digits than its factorization.

12570345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9053 (or 9050 counting only the distinct ones).

The product of its (nonzero) digits is 4200, while the sum is 27.

The square root of 12570345 is about 3545.4682342393. The cubic root of 12570345 is about 232.5139776543.

Adding to 12570345 its reverse (54307521), we get a palindrome (66877866).

The spelling of 12570345 in words is "twelve million, five hundred seventy thousand, three hundred forty-five".