38200181 has 2 divisors, whose sum is σ = 38200182. Its totient is φ = 38200180.

The previous prime is 38200159. The next prime is 38200219. The reversal of 38200181 is 18100283.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 38019556 + 180625 = 6166^2 + 425^2 .

It is an emirp because it is prime and its reverse (18100283) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 38200181 - 2¹⁸ = 37938037 is a prime.

It is a super-2 number, since 2×38200181² = 2918507656865522, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (38200381) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19100090 + 19100091.

It is an arithmetic number, because the mean of its divisors is an integer number (19100091).

Almost surely, 2^38200181 is an apocalyptic number.

It is an amenable number.

38200181 is a deficient number, since it is larger than the sum of its proper divisors (1).

38200181 is an equidigital number, since it uses as much as digits as its factorization.

38200181 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 384, while the sum is 23.

The square root of 38200181 is about 6180.6294986838. The cubic root of 38200181 is about 336.7868610911.

The spelling of 38200181 in words is "thirty-eight million, two hundred thousand, one hundred eighty-one".