40110181 has 2 divisors, whose sum is σ = 40110182. Its totient is φ = 40110180.

The previous prime is 40110173. The next prime is 40110199. The reversal of 40110181 is 18101104.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 38750625 + 1359556 = 6225^2 + 1166^2 .

It is a cyclic number.

It is not a de Polignac number, because 40110181 - 2³ = 40110173 is a prime.

It is a super-2 number, since 2×40110181² = 3217653239705522, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40110151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20055090 + 20055091.

It is an arithmetic number, because the mean of its divisors is an integer number (20055091).

Almost surely, 2^40110181 is an apocalyptic number.

It is an amenable number.

40110181 is a deficient number, since it is larger than the sum of its proper divisors (1).

40110181 is an equidigital number, since it uses as much as digits as its factorization.

40110181 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 32, while the sum is 16.

The square root of 40110181 is about 6333.2599030831. The cubic root of 40110181 is about 342.3089128913.

Adding to 40110181 its reverse (18101104), we get a palindrome (58211285).

The spelling of 40110181 in words is "forty million, one hundred ten thousand, one hundred eighty-one".