141005989 has 4 divisors (see below), whose sum is σ = 143110624. Its totient is φ = 138901356.

The previous prime is 141005983. The next prime is 141006013. The reversal of 141005989 is 989500141.

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: 989500141 = 7 ⋅141357163.

It is a cyclic number.

It is not a de Polignac number, because 141005989 - 2⁷ = 141005861 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (141005983) 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 3 ways as a sum of consecutive naturals, for example, 1052217 + ... + 1052350.

It is an arithmetic number, because the mean of its divisors is an integer number (35777656).

Almost surely, 2^141005989 is an apocalyptic number.

It is an amenable number.

141005989 is a deficient number, since it is larger than the sum of its proper divisors (2104635).

141005989 is an equidigital number, since it uses as much as digits as its factorization.

141005989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2104634.

The product of its (nonzero) digits is 12960, while the sum is 37.

The square root of 141005989 is about 11874.5942667529. The cubic root of 141005989 is about 520.4901554346.

The spelling of 141005989 in words is "one hundred forty-one million, five thousand, nine hundred eighty-nine".