40826161 has 2 divisors, whose sum is σ = 40826162. Its totient is φ = 40826160.

The previous prime is 40826147. The next prime is 40826167. The reversal of 40826161 is 16162804.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 29637136 + 11189025 = 5444^2 + 3345^2 .

It is a cyclic number.

It is not a de Polignac number, because 40826161 - 2¹⁹ = 40301873 is a prime.

It is not a weakly prime, because it can be changed into another prime (40826167) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20413080 + 20413081.

It is an arithmetic number, because the mean of its divisors is an integer number (20413081).

Almost surely, 2^40826161 is an apocalyptic number.

It is an amenable number.

40826161 is a deficient number, since it is larger than the sum of its proper divisors (1).

40826161 is an equidigital number, since it uses as much as digits as its factorization.

40826161 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2304, while the sum is 28.

The square root of 40826161 is about 6389.5352726157. The cubic root of 40826161 is about 344.3336884007. Note that the first 3 decimals are identical.

Adding to 40826161 its reverse (16162804), we get a palindrome (56988965).

It can be divided in two parts, 408 and 26161, that added together give a square (26569 = 163²).

The spelling of 40826161 in words is "forty million, eight hundred twenty-six thousand, one hundred sixty-one".