141043561 has 4 divisors (see below), whose sum is σ = 141436800. Its totient is φ = 140650324.

The previous prime is 141043537. The next prime is 141043579. The reversal of 141043561 is 165340141.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 141043561 - 2⁷ = 141043433 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (141043261) 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, 196081 + ... + 196798.

It is an arithmetic number, because the mean of its divisors is an integer number (35359200).

Almost surely, 2^141043561 is an apocalyptic number.

It is an amenable number.

141043561 is a deficient number, since it is larger than the sum of its proper divisors (393239).

141043561 is an equidigital number, since it uses as much as digits as its factorization.

141043561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 393238.

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 141043561 is about 11876.1761943818. The cubic root of 141043561 is about 520.5363807039.

The spelling of 141043561 in words is "one hundred forty-one million, forty-three thousand, five hundred sixty-one".