141209251 has 2 divisors, whose sum is σ = 141209252. Its totient is φ = 141209250.

The previous prime is 141209249. The next prime is 141209281. The reversal of 141209251 is 152902141.

It is a happy number.

141209251 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 141209251 - 2¹ = 141209249 is a prime.

Together with 141209249, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (141209231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70604625 + 70604626.

It is an arithmetic number, because the mean of its divisors is an integer number (70604626).

Almost surely, 2^141209251 is an apocalyptic number.

141209251 is a deficient number, since it is larger than the sum of its proper divisors (1).

141209251 is an equidigital number, since it uses as much as digits as its factorization.

141209251 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 720, while the sum is 25.

The square root of 141209251 is about 11883.1498770318. The cubic root of 141209251 is about 520.7401331744.

The spelling of 141209251 in words is "one hundred forty-one million, two hundred nine thousand, two hundred fifty-one".