141306409 has 4 divisors (see below), whose sum is σ = 141446916. Its totient is φ = 141165904.

The previous prime is 141306391. The next prime is 141306413. The reversal of 141306409 is 904603141.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 904603141 = 13 ⋅69584857.

It can be written as a sum of positive squares in 2 ways, for example, as 29539225 + 111767184 = 5435^2 + 10572^2 .

It is a cyclic number.

It is not a de Polignac number, because 141306409 - 2¹⁹ = 140782121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (141306419) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 68734 + ... + 70759.

It is an arithmetic number, because the mean of its divisors is an integer number (35361729).

Almost surely, 2^141306409 is an apocalyptic number.

It is an amenable number.

141306409 is a deficient number, since it is larger than the sum of its proper divisors (140507).

141306409 is a wasteful number, since it uses less digits than its factorization.

141306409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140506.

The product of its (nonzero) digits is 2592, while the sum is 28.

The square root of 141306409 is about 11887.2372315858. The cubic root of 141306409 is about 520.8595362831.

The spelling of 141306409 in words is "one hundred forty-one million, three hundred six thousand, four hundred nine".