141661643 has 2 divisors, whose sum is σ = 141661644. Its totient is φ = 141661642.

The previous prime is 141661631. The next prime is 141661673. The reversal of 141661643 is 346166141.

141661643 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 141661643 - 2¹⁶ = 141596107 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (141661673) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70830821 + 70830822.

It is an arithmetic number, because the mean of its divisors is an integer number (70830822).

Almost surely, 2^141661643 is an apocalyptic number.

141661643 is a deficient number, since it is larger than the sum of its proper divisors (1).

141661643 is an equidigital number, since it uses as much as digits as its factorization.

141661643 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10368, while the sum is 32.

The square root of 141661643 is about 11902.1696761557. The cubic root of 141661643 is about 521.2956386649.

The spelling of 141661643 in words is "one hundred forty-one million, six hundred sixty-one thousand, six hundred forty-three".