12152522 has 8 divisors (see below), whose sum is σ = 18409572. Its totient is φ = 6016000.

The previous prime is 12152513. The next prime is 12152549. The reversal of 12152522 is 22525121.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 8462281 + 3690241 = 2909^2 + 1921^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 12152494 and 12152503.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 29879 + ... + 30282.

Almost surely, 2^12152522 is an apocalyptic number.

12152522 is a deficient number, since it is larger than the sum of its proper divisors (6257050).

12152522 is a wasteful number, since it uses less digits than its factorization.

12152522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60264.

The product of its digits is 400, while the sum is 20.

The square root of 12152522 is about 3486.0467581488. The cubic root of 12152522 is about 229.9087350570.

Adding to 12152522 its reverse (22525121), we get a palindrome (34677643).

The spelling of 12152522 in words is "twelve million, one hundred fifty-two thousand, five hundred twenty-two".