141636561 has 8 divisors (see below), whose sum is σ = 206016864. Its totient is φ = 85840320.

The previous prime is 141636557. The next prime is 141636563. The reversal of 141636561 is 165636141.

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

It is not a de Polignac number, because 141636561 - 2² = 141636557 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33), and also a Moran number because the ratio is a prime number: 4292017 = 141636561 / (1 + 4 + 1 + 6 + 3 + 6 + 5 + 6 + 1).

It is an alternating number because its digits alternate between odd and even.

It is not an unprimeable number, because it can be changed into a prime (141636563) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2145976 + ... + 2146041.

It is an arithmetic number, because the mean of its divisors is an integer number (25752108).

Almost surely, 2^141636561 is an apocalyptic number.

141636561 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

141636561 is a deficient number, since it is larger than the sum of its proper divisors (64380303).

141636561 is a wasteful number, since it uses less digits than its factorization.

141636561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4292031.

The product of its digits is 12960, while the sum is 33.

The square root of 141636561 is about 11901.1159560774. The cubic root of 141636561 is about 521.2648707292.

The spelling of 141636561 in words is "one hundred forty-one million, six hundred thirty-six thousand, five hundred sixty-one".