409502141 has 2 divisors, whose sum is σ = 409502142. Its totient is φ = 409502140.

The previous prime is 409502123. The next prime is 409502167. The reversal of 409502141 is 141205904.

It is an a-pointer prime, because the next prime (409502167) can be obtained adding 409502141 to its sum of digits (26).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 310499641 + 99002500 = 17621^2 + 9950^2 .

It is a cyclic number.

It is not a de Polignac number, because 409502141 - 2⁶ = 409502077 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 409502141.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (409502641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 204751070 + 204751071.

It is an arithmetic number, because the mean of its divisors is an integer number (204751071).

Almost surely, 2^409502141 is an apocalyptic number.

It is an amenable number.

409502141 is a deficient number, since it is larger than the sum of its proper divisors (1).

409502141 is an equidigital number, since it uses as much as digits as its factorization.

409502141 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1440, while the sum is 26.

The square root of 409502141 is about 20236.1592452718. The cubic root of 409502141 is about 742.5950652765.

The spelling of 409502141 in words is "four hundred nine million, five hundred two thousand, one hundred forty-one".