981141079 has 4 divisors (see below), whose sum is σ = 1014973560. Its totient is φ = 947308600.

The previous prime is 981141071. The next prime is 981141113. The reversal of 981141079 is 970141189.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 981141079 - 2³ = 981141071 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (981141071) 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, 16916197 + ... + 16916254.

It is an arithmetic number, because the mean of its divisors is an integer number (253743390).

Almost surely, 2^981141079 is an apocalyptic number.

981141079 is a deficient number, since it is larger than the sum of its proper divisors (33832481).

981141079 is a wasteful number, since it uses less digits than its factorization.

981141079 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33832480.

The product of its (nonzero) digits is 18144, while the sum is 40.

The square root of 981141079 is about 31323.1715986744. The cubic root of 981141079 is about 993.6737560322.

The spelling of 981141079 in words is "nine hundred eighty-one million, one hundred forty-one thousand, seventy-nine".