981144041 has 4 divisors (see below), whose sum is σ = 982887312. Its totient is φ = 979400772.

The previous prime is 981144013. The next prime is 981144053. The reversal of 981144041 is 140441189.

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.

It is a cyclic number.

It is not a de Polignac number, because 981144041 - 2¹⁰ = 981143017 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 981143989 and 981144007.

It is not an unprimeable number, because it can be changed into a prime (981144011) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 870791 + ... + 871916.

It is an arithmetic number, because the mean of its divisors is an integer number (245721828).

Almost surely, 2^981144041 is an apocalyptic number.

It is an amenable number.

981144041 is a deficient number, since it is larger than the sum of its proper divisors (1743271).

981144041 is a wasteful number, since it uses less digits than its factorization.

981144041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1743270.

The product of its (nonzero) digits is 4608, while the sum is 32.

The square root of 981144041 is about 31323.2188799299. The cubic root of 981144041 is about 993.6747559763.

The spelling of 981144041 in words is "nine hundred eighty-one million, one hundred forty-four thousand, forty-one".