12243554 has 8 divisors (see below), whose sum is σ = 18666588. Its totient is φ = 6021360.

The previous prime is 12243551. The next prime is 12243557. The reversal of 12243554 is 45534221.

It is a happy number.

12243554 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (12243551) and next prime (12243557).

It can be written as a sum of positive squares in 2 ways, for example, as 10067929 + 2175625 = 3173^2 + 1475^2 .

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

It is a super-2 number, since 2×12243554² = 299809229101832, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12243551) 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, 50057 + ... + 50300.

Almost surely, 2^12243554 is an apocalyptic number.

12243554 is a deficient number, since it is larger than the sum of its proper divisors (6423034).

12243554 is a wasteful number, since it uses less digits than its factorization.

12243554 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100420.

The product of its digits is 4800, while the sum is 26.

The square root of 12243554 is about 3499.0790216856. The cubic root of 12243554 is about 230.4813736688.

Adding to 12243554 its reverse (45534221), we get a palindrome (57777775).

The spelling of 12243554 in words is "twelve million, two hundred forty-three thousand, five hundred fifty-four".