18232141 has 2 divisors, whose sum is σ = 18232142. Its totient is φ = 18232140.

The previous prime is 18232127. The next prime is 18232163. The reversal of 18232141 is 14123281.

It is a happy number.

It is an a-pointer prime, because the next prime (18232163) can be obtained adding 18232141 to its sum of digits (22).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13169641 + 5062500 = 3629^2 + 2250^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-18232141 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18232111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9116070 + 9116071.

It is an arithmetic number, because the mean of its divisors is an integer number (9116071).

Almost surely, 2^18232141 is an apocalyptic number.

It is an amenable number.

18232141 is a deficient number, since it is larger than the sum of its proper divisors (1).

18232141 is an equidigital number, since it uses as much as digits as its factorization.

18232141 is an evil number, because the sum of its binary digits is even.

The product of its digits is 384, while the sum is 22.

The square root of 18232141 is about 4269.9111231968. The cubic root of 18232141 is about 263.1959629974.

It can be divided in two parts, 182 and 32141, that added together give a palindrome (32323).

The spelling of 18232141 in words is "eighteen million, two hundred thirty-two thousand, one hundred forty-one".