40589161 has 2 divisors, whose sum is σ = 40589162. Its totient is φ = 40589160.

The previous prime is 40589117. The next prime is 40589167. The reversal of 40589161 is 16198504.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 30470400 + 10118761 = 5520^2 + 3181^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40589161 is a prime.

It is not a weakly prime, because it can be changed into another prime (40589167) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20294580 + 20294581.

It is an arithmetic number, because the mean of its divisors is an integer number (20294581).

Almost surely, 2^40589161 is an apocalyptic number.

It is an amenable number.

40589161 is a deficient number, since it is larger than the sum of its proper divisors (1).

40589161 is an equidigital number, since it uses as much as digits as its factorization.

40589161 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8640, while the sum is 34.

The square root of 40589161 is about 6370.9623291933. The cubic root of 40589161 is about 343.6660976054. Note that the first 3 decimals are identical.

The spelling of 40589161 in words is "forty million, five hundred eighty-nine thousand, one hundred sixty-one".