132238181 has 2 divisors, whose sum is σ = 132238182. Its totient is φ = 132238180.

The previous prime is 132238177. The next prime is 132238193. The reversal of 132238181 is 181832231.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 103347556 + 28890625 = 10166^2 + 5375^2 .

It is a cyclic number.

It is not a de Polignac number, because 132238181 - 2² = 132238177 is a prime.

It is a super-2 number, since 2×132238181² = 34973873028377522, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (132238681) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66119090 + 66119091.

It is an arithmetic number, because the mean of its divisors is an integer number (66119091).

Almost surely, 2^132238181 is an apocalyptic number.

It is an amenable number.

132238181 is a deficient number, since it is larger than the sum of its proper divisors (1).

132238181 is an equidigital number, since it uses as much as digits as its factorization.

132238181 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2304, while the sum is 29.

The square root of 132238181 is about 11499.4861189533. The cubic root of 132238181 is about 509.4703985874.

The spelling of 132238181 in words is "one hundred thirty-two million, two hundred thirty-eight thousand, one hundred eighty-one".