141312209 has 4 divisors (see below), whose sum is σ = 141496740. Its totient is φ = 141127680.

The previous prime is 141312203. The next prime is 141312239. The reversal of 141312209 is 902213141.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 99062209 + 42250000 = 9953^2 + 6500^2 .

It is a cyclic number.

It is not a de Polignac number, because 141312209 - 2¹⁶ = 141246673 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (141312203) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 91112 + ... + 92649.

It is an arithmetic number, because the mean of its divisors is an integer number (35374185).

Almost surely, 2^141312209 is an apocalyptic number.

It is an amenable number.

141312209 is a deficient number, since it is larger than the sum of its proper divisors (184531).

141312209 is an equidigital number, since it uses as much as digits as its factorization.

141312209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 184530.

The product of its (nonzero) digits is 432, while the sum is 23.

The square root of 141312209 is about 11887.4811882080. The cubic root of 141312209 is about 520.8666625086.

The spelling of 141312209 in words is "one hundred forty-one million, three hundred twelve thousand, two hundred nine".