141509561 has 8 divisors (see below), whose sum is σ = 144900384. Its totient is φ = 138156480.

The previous prime is 141509539. The next prime is 141509651. The reversal of 141509561 is 165905141.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 141509561 - 2¹⁰ = 141508537 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (141509161) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1775 + ... + 16916.

It is an arithmetic number, because the mean of its divisors is an integer number (18112548).

Almost surely, 2^141509561 is an apocalyptic number.

It is an amenable number.

141509561 is a deficient number, since it is larger than the sum of its proper divisors (3390823).

141509561 is a wasteful number, since it uses less digits than its factorization.

141509561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18871.

The product of its (nonzero) digits is 5400, while the sum is 32.

The square root of 141509561 is about 11895.7791253873. The cubic root of 141509561 is about 521.1090248221.

The spelling of 141509561 in words is "one hundred forty-one million, five hundred nine thousand, five hundred sixty-one".