12530745 has 24 divisors (see below), whose sum is σ = 22666176. Its totient is φ = 6391968.

The previous prime is 12530729. The next prime is 12530773. The reversal of 12530745 is 54703521.

It is a happy number.

It is not a de Polignac number, because 12530745 - 2⁴ = 12530729 is a prime.

It is a Smith number, since the sum of its digits (27) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5019 + ... + 7088.

It is an arithmetic number, because the mean of its divisors is an integer number (944424).

Almost surely, 2^12530745 is an apocalyptic number.

12530745 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12530745 is a deficient number, since it is larger than the sum of its proper divisors (10135431).

12530745 is a wasteful number, since it uses less digits than its factorization.

12530745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12141 (or 12138 counting only the distinct ones).

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

The square root of 12530745 is about 3539.8792352282. The cubic root of 12530745 is about 232.2695600922.

The spelling of 12530745 in words is "twelve million, five hundred thirty thousand, seven hundred forty-five".