981122107 has 4 divisors (see below), whose sum is σ = 1121282416. Its totient is φ = 840961800.

The previous prime is 981122083. The next prime is 981122111. The reversal of 981122107 is 701221189.

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

It is not a de Polignac number, because 981122107 - 2¹¹ = 981120059 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (981122147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 70080144 + ... + 70080157.

It is an arithmetic number, because the mean of its divisors is an integer number (280320604).

Almost surely, 2^981122107 is an apocalyptic number.

981122107 is a deficient number, since it is larger than the sum of its proper divisors (140160309).

981122107 is a wasteful number, since it uses less digits than its factorization.

981122107 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140160308.

The product of its (nonzero) digits is 2016, while the sum is 31.

The square root of 981122107 is about 31322.8687543143. The cubic root of 981122107 is about 993.6673512109.

The spelling of 981122107 in words is "nine hundred eighty-one million, one hundred twenty-two thousand, one hundred seven".