141209281 has 2 divisors, whose sum is σ = 141209282. Its totient is φ = 141209280.

The previous prime is 141209251. The next prime is 141209287. The reversal of 141209281 is 182902141.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 140209281 + 1000000 = 11841^2 + 1000^2 .

It is a cyclic number.

It is not a de Polignac number, because 141209281 - 2⁵ = 141209249 is a prime.

It is a super-2 number, since 2×141209281² = 39880122081073922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (141209287) 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, 70604640 + 70604641.

It is an arithmetic number, because the mean of its divisors is an integer number (70604641).

Almost surely, 2^141209281 is an apocalyptic number.

It is an amenable number.

141209281 is a deficient number, since it is larger than the sum of its proper divisors (1).

141209281 is an equidigital number, since it uses as much as digits as its factorization.

141209281 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1152, while the sum is 28.

The square root of 141209281 is about 11883.1511393233. The cubic root of 141209281 is about 520.7401700516.

The spelling of 141209281 in words is "one hundred forty-one million, two hundred nine thousand, two hundred eighty-one".