12530145 has 16 divisors (see below), whose sum is σ = 20123712. Its totient is φ = 6657600.

The previous prime is 12530143. The next prime is 12530149. The reversal of 12530145 is 54103521.

It is not a de Polignac number, because 12530145 - 2¹ = 12530143 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12530143) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2970 + ... + 5820.

It is an arithmetic number, because the mean of its divisors is an integer number (1257732).

Almost surely, 2^12530145 is an apocalyptic number.

12530145 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12530145 is a deficient number, since it is larger than the sum of its proper divisors (7593567).

12530145 is a wasteful number, since it uses less digits than its factorization.

12530145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3152.

The product of its (nonzero) digits is 600, while the sum is 21.

The square root of 12530145 is about 3539.7944855599. The cubic root of 12530145 is about 232.2658528383.

Adding to 12530145 its reverse (54103521), we get a palindrome (66633666).

The spelling of 12530145 in words is "twelve million, five hundred thirty thousand, one hundred forty-five".