12152530 has 16 divisors (see below), whose sum is σ = 23557464. Its totient is φ = 4487040.

The previous prime is 12152513. The next prime is 12152549. The reversal of 12152530 is 3525121.

It can be written as a sum of positive squares in 4 ways, for example, as 9753129 + 2399401 = 3123^2 + 1549^2 .

It is a junction number, because it is equal to n+sod(n) for n = 12152498 and 12152507.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 46611 + ... + 46870.

Almost surely, 2^12152530 is an apocalyptic number.

12152530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12152530 is a deficient number, since it is larger than the sum of its proper divisors (11404934).

12152530 is a wasteful number, since it uses less digits than its factorization.

12152530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93501.

The product of its (nonzero) digits is 300, while the sum is 19.

The square root of 12152530 is about 3486.0479055802. The cubic root of 12152530 is about 229.9087855066.

Adding to 12152530 its reverse (3525121), we get a palindrome (15677651).

The spelling of 12152530 in words is "twelve million, one hundred fifty-two thousand, five hundred thirty".