141212909 has 2 divisors, whose sum is σ = 141212910. Its totient is φ = 141212908.

The previous prime is 141212873. The next prime is 141212917. The reversal of 141212909 is 909212141.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 141086884 + 126025 = 11878^2 + 355^2 .

It is an emirp because it is prime and its reverse (909212141) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 141212909 - 2⁸ = 141212653 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (141212969) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70606454 + 70606455.

It is an arithmetic number, because the mean of its divisors is an integer number (70606455).

Almost surely, 2^141212909 is an apocalyptic number.

It is an amenable number.

141212909 is a deficient number, since it is larger than the sum of its proper divisors (1).

141212909 is an equidigital number, since it uses as much as digits as its factorization.

141212909 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1296, while the sum is 29.

The square root of 141212909 is about 11883.3037914546. The cubic root of 141212909 is about 520.7446296951.

The spelling of 141212909 in words is "one hundred forty-one million, two hundred twelve thousand, nine hundred nine".