12153242 has 8 divisors (see below), whose sum is σ = 18722676. Its totient is φ = 5912352.

The previous prime is 12153221. The next prime is 12153247. The reversal of 12153242 is 24235121.

It can be written as a sum of positive squares in 2 ways, for example, as 10896601 + 1256641 = 3301^2 + 1121^2 .

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

It is a super-2 number, since 2×12153242² = 295402582221128, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12153247) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 82043 + ... + 82190.

Almost surely, 2^12153242 is an apocalyptic number.

12153242 is a deficient number, since it is larger than the sum of its proper divisors (6569434).

12153242 is a wasteful number, since it uses less digits than its factorization.

12153242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 164272.

The product of its digits is 480, while the sum is 20.

The square root of 12153242 is about 3486.1500254579. The cubic root of 12153242 is about 229.9132754320.

Adding to 12153242 its reverse (24235121), we get a palindrome (36388363).

The spelling of 12153242 in words is "twelve million, one hundred fifty-three thousand, two hundred forty-two".