981942755 has 16 divisors (see below), whose sum is σ = 1223510400. Its totient is φ = 755637120.

The previous prime is 981942751. The next prime is 981942809. The reversal of 981942755 is 557249189.

981942755 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 981942755 - 2² = 981942751 is a prime.

It is not an unprimeable number, because it can be changed into a prime (981942751) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26801 + ... + 51789.

It is an arithmetic number, because the mean of its divisors is an integer number (76469400).

Almost surely, 2^981942755 is an apocalyptic number.

981942755 is a deficient number, since it is larger than the sum of its proper divisors (241567645).

981942755 is a wasteful number, since it uses less digits than its factorization.

981942755 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25294.

The product of its digits is 907200, while the sum is 50.

The square root of 981942755 is about 31335.9658379952. The cubic root of 981942755 is about 993.9443211096.

The spelling of 981942755 in words is "nine hundred eighty-one million, nine hundred forty-two thousand, seven hundred fifty-five".