141916409 has 2 divisors, whose sum is σ = 141916410. Its totient is φ = 141916408.

The previous prime is 141916403. The next prime is 141916421. The reversal of 141916409 is 904619141.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 126337600 + 15578809 = 11240^2 + 3947^2 .

It is a cyclic number.

It is not a de Polignac number, because 141916409 - 2²⁰ = 140867833 is a prime.

It is not a weakly prime, because it can be changed into another prime (141916403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70958204 + 70958205.

It is an arithmetic number, because the mean of its divisors is an integer number (70958205).

Almost surely, 2^141916409 is an apocalyptic number.

It is an amenable number.

141916409 is a deficient number, since it is larger than the sum of its proper divisors (1).

141916409 is an equidigital number, since it uses as much as digits as its factorization.

141916409 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7776, while the sum is 35.

The square root of 141916409 is about 11912.8673710404. The cubic root of 141916409 is about 521.6079529620.

The spelling of 141916409 in words is "one hundred forty-one million, nine hundred sixteen thousand, four hundred nine".