141085561 has 4 divisors (see below), whose sum is σ = 141622272. Its totient is φ = 140548852.

The previous prime is 141085543. The next prime is 141085573. The reversal of 141085561 is 165580141.

141085561 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, and also an emirpimes, since its reverse is a distinct semiprime: 165580141 = 2789 ⋅59369.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-141085561 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (141085501) 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, 267961 + ... + 268486.

It is an arithmetic number, because the mean of its divisors is an integer number (35405568).

Almost surely, 2^141085561 is an apocalyptic number.

It is an amenable number.

141085561 is a deficient number, since it is larger than the sum of its proper divisors (536711).

141085561 is an equidigital number, since it uses as much as digits as its factorization.

141085561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 536710.

The product of its (nonzero) digits is 4800, while the sum is 31.

The square root of 141085561 is about 11877.9443086756. The cubic root of 141085561 is about 520.5880440769.

The spelling of 141085561 in words is "one hundred forty-one million, eighty-five thousand, five hundred sixty-one".