141999985 has 8 divisors (see below), whose sum is σ = 173615400. Its totient is φ = 111456384.

The previous prime is 141999971. The next prime is 142000003. The reversal of 141999985 is 589999141.

It can be written as a sum of positive squares in 4 ways, for example, as 76195441 + 65804544 = 8729^2 + 8112^2 .

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 141999985 - 2⁷ = 141999857 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 267660 + ... + 268189.

It is an arithmetic number, because the mean of its divisors is an integer number (21701925).

Almost surely, 2^141999985 is an apocalyptic number.

It is an amenable number.

141999985 is a deficient number, since it is larger than the sum of its proper divisors (31615415).

141999985 is an equidigital number, since it uses as much as digits as its factorization.

141999985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 535907.

The product of its digits is 1049760, while the sum is 55.

The square root of 141999985 is about 11916.3746584269. The cubic root of 141999985 is about 521.7103262575.

The spelling of 141999985 in words is "one hundred forty-one million, nine hundred ninety-nine thousand, nine hundred eighty-five".