18124461 has 24 divisors (see below), whose sum is σ = 27911520. Its totient is φ = 11300256.

The previous prime is 18124453. The next prime is 18124489. The reversal of 18124461 is 16442181.

It is a happy number.

18124461 is a `hidden beast` number, since 181 + 24 + 461 = 666.

It is not a de Polignac number, because 18124461 - 2³ = 18124453 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18124451) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13555 + ... + 14831.

It is an arithmetic number, because the mean of its divisors is an integer number (1162980).

Almost surely, 2^18124461 is an apocalyptic number.

It is an amenable number.

18124461 is a deficient number, since it is larger than the sum of its proper divisors (9787059).

18124461 is a wasteful number, since it uses less digits than its factorization.

18124461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1385 (or 1382 counting only the distinct ones).

The product of its digits is 1536, while the sum is 27.

The square root of 18124461 is about 4257.2832886713. The cubic root of 18124461 is about 262.6767897516.

It can be divided in two parts, 181 and 24461, that added together give a palindrome (24642).

The spelling of 18124461 in words is "eighteen million, one hundred twenty-four thousand, four hundred sixty-one".