12018548 has 6 divisors (see below), whose sum is σ = 21032466. Its totient is φ = 6009272.

The previous prime is 12018547. The next prime is 12018551. The reversal of 12018548 is 84581021.

It can be written as a sum of positive squares in only one way, i.e., 10510564 + 1507984 = 3242^2 + 1228^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 12018548.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12018547) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1502315 + ... + 1502322.

It is an arithmetic number, because the mean of its divisors is an integer number (3505411).

Almost surely, 2^12018548 is an apocalyptic number.

It is an amenable number.

12018548 is a deficient number, since it is larger than the sum of its proper divisors (9013918).

12018548 is a wasteful number, since it uses less digits than its factorization.

12018548 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3004641 (or 3004639 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 29.

The square root of 12018548 is about 3466.7777546304. Note that the first 4 decimals coincide. The cubic root of 12018548 is about 229.0607442322.

Adding to 12018548 its reverse (84581021), we get a palindrome (96599569).

The spelling of 12018548 in words is "twelve million, eighteen thousand, five hundred forty-eight".