40181341 has 2 divisors, whose sum is σ = 40181342. Its totient is φ = 40181340.

The previous prime is 40181303. The next prime is 40181347. The reversal of 40181341 is 14318104.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 22992025 + 17189316 = 4795^2 + 4146^2 .

It is a cyclic number.

It is not a de Polignac number, because 40181341 - 2¹⁵ = 40148573 is a prime.

It is a super-2 number, since 2×40181341² = 3229080329116562, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40181347) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20090670 + 20090671.

It is an arithmetic number, because the mean of its divisors is an integer number (20090671).

Almost surely, 2^40181341 is an apocalyptic number.

It is an amenable number.

40181341 is a deficient number, since it is larger than the sum of its proper divisors (1).

40181341 is an equidigital number, since it uses as much as digits as its factorization.

40181341 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 22.

The square root of 40181341 is about 6338.8753734397. The cubic root of 40181341 is about 342.5112248794.

Adding to 40181341 its reverse (14318104), we get a palindrome (54499445).

The spelling of 40181341 in words is "forty million, one hundred eighty-one thousand, three hundred forty-one".