12530146 has 8 divisors (see below), whose sum is σ = 19443420. Its totient is φ = 6049008.

The previous prime is 12530143. The next prime is 12530149. The reversal of 12530146 is 64103521.

It is an interprime number because it is at equal distance from previous prime (12530143) and next prime (12530149).

It can be written as a sum of positive squares in 2 ways, for example, as 12524521 + 5625 = 3539^2 + 75^2 .

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

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 3 ways as a sum of consecutive naturals, for example, 107961 + ... + 108076.

Almost surely, 2^12530146 is an apocalyptic number.

12530146 is a deficient number, since it is larger than the sum of its proper divisors (6913274).

12530146 is a wasteful number, since it uses less digits than its factorization.

12530146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 216068.

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 12530146 is about 3539.7946268110. The cubic root of 12530146 is about 232.2658590172.

Adding to 12530146 its reverse (64103521), we get a palindrome (76633667).

The spelling of 12530146 in words is "twelve million, five hundred thirty thousand, one hundred forty-six".